1
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Yan T, Jia Y, Hou K, Gui Z, Zhang W, Du K, Pan D, Li H, Shi Y, Qi L, Gao Q, Zhang Y, Tang Y. Highly efficient hydrodesulfurization driven by an in-situ reconstruction of ammonium/amine intercalated MoS 2 catalysts. iScience 2024; 27:109824. [PMID: 38779484 PMCID: PMC11109011 DOI: 10.1016/j.isci.2024.109824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/11/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024] Open
Abstract
Hydrodesulfurization (HDS) is a commonly used route for producing clean fuels in modern refinery. Herein, ammonium/amine-intercalated MoS2 catalysts with various content of 1T phase and S vacancies have been successfully synthesized. Along with the increment of 1T phase and S vacancies of MoS2, the initial reaction rate of the HDS of dibenzothiophene (DBT) can be improved from 0.09 to 0.55 μmol·gcat-1·s-1, accounting for a remarkable activity compared to the-state-of-the-art catalysts. In a combinatory study via the activity evaluation and catalysts characterization, we found that the intercalation species of MoS2 played a key role in generating more 1T phase and S vacancies through the 'intercalation-deintercalation' processes, and the hydrogenation and desulfurization of HDS can be significantly promoted by 1T phase and S vacancies on MoS2, respectively. This study provides a practically meaningful guidance for developing more advanced HDS catalysts by the intercalated MoS2-derived materials with an in-depth understanding of structure-function relationships.
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Affiliation(s)
- Tianlan Yan
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Yingshuai Jia
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Kaige Hou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Zhuxin Gui
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Wenbiao Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
- College of Chemistry and Materials Science, and, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, P.R. China
| | - Ke Du
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Di Pan
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - He Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Yanghao Shi
- College of Chemistry and Materials Science, and, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, P.R. China
| | - Lu Qi
- School of Petrochemical Engineering, and, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu 213164, P.R. China
| | - Qingsheng Gao
- College of Chemistry and Materials Science, and, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, P.R. China
| | - Yahong Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
| | - Yi Tang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P.R. China
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2
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Sun Y, Ellis A, Diaz S, Li W, Miao M. Constructing Tunable Electrides on Monolayer Transition Metal Dichalcogenides. J Phys Chem Lett 2024; 15:6174-6182. [PMID: 38836596 DOI: 10.1021/acs.jpclett.4c01263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Electrides have emerged as promising materials with exotic properties due to the presence of localized electrons detached from all atoms. Despite the continuous discovery of many new electrides, most of them are based on atypical compositions, and their applications require an inert surface structure to passivate reactive excess electrons. Here, we demonstrate a different route to attain tunable electrides. We first report that monolayer transition metal dichalcogenides (TMDCs) exhibit weak electride characteristics, which is the remainder of the electride feature of the transition metal sublattice. By introducing chalcogen vacancies, the enhanced electride characteristics are comparable to those of known electrides. Since the precise tailoring of the chalcogen vacancy concentration has been achieved experimentally, we proposed that TMDCs can be used to build electrides with controllable intensities. Furthermore, we demonstrate that the electride states at the chalcogen vacancy of monolayer TMDCs will play an important role in catalyzing hydrogen evolution reactions.
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Affiliation(s)
- Yuanhui Sun
- Suzhou Laboratory, Suzhou, Jiangsu 215123, P. R. China
- Department of Chemistry and Biochemistry, California State University Northridge, Northridge, California 91330, United States
| | - Austin Ellis
- Department of Chemistry and Biochemistry, California State University Northridge, Northridge, California 91330, United States
| | - Saul Diaz
- Department of Chemistry and Biochemistry, California State University Northridge, Northridge, California 91330, United States
| | - Wei Li
- Suzhou Laboratory, Suzhou, Jiangsu 215123, P. R. China
- Gusu Laboratory of Materials, Suzhou, Jiangsu 215123, P. R. China
| | - Maosheng Miao
- Department of Chemistry and Biochemistry, California State University Northridge, Northridge, California 91330, United States
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3
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Huang K, Cao X, Lu Y, Xiu M, Cui K, Zhang B, Shi W, Xia J, Woods LM, Zhu S, Wang Z, Guo C, Li C, Liu Z, Wu J, Huang Y. Lattice-Disordered High-Entropy Alloy Engineered by Thermal Dezincification for Improved Catalytic Hydrogen Evolution Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2304867. [PMID: 38837502 DOI: 10.1002/adma.202304867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 05/20/2024] [Indexed: 06/07/2024]
Abstract
A disordered crystal structure is an asymmetrical atomic lattice resulting from the missing atoms (vacancies) or the lattice misarrangement in a solid-state material. It has been widely proven to improve the electrocatalytic hydrogen evolution reaction (HER) process. In the present work, due to the special physical properties (the low evaporation temperature of below 900 °C), Zn is utilized as a sacrificial component to create senary PtIrNiCoFeZn high-entropy alloy (HEA) with highly disordered lattices. The structure of the lattice-disordered PtIrNiCoFeZn HEA is characterized by the thermal diffusion scattering (TDS) in transmission electron microscope. Density functional theory calculations reveal that lattice disorder not only accelerates both the Volmer step and Tafel step during the HER process but also optimizes the intensity and distribution of projected density of states near the Fermi energy after the H2O and H adsorption. Anomalously high alkaline HER activity and stability are proven by experimental measurements. This work introduces a novel approach to preparing irregular lattices offering highly efficient HEA and a TDS characterization method to reveal the disordered lattice in materials. It provides a new route toward exploring and developing the catalytic activities of materials with asymmetrically disordered lattices.
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Affiliation(s)
- Kang Huang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China
- School of Optical and Electronic Information, Suzhou City University, Suzhou, 215104, China
| | - Xun Cao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yu Lu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Mingzhen Xiu
- Energy Research Institute, Interdisciplinary Graduate Programme, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Kang Cui
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Bowei Zhang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China
| | - Wencong Shi
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, Shanxi, 710072, China
| | - Jiuyang Xia
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China
| | - Lilia M Woods
- Department of Physics, University of South Florida, Tampa, FL, 33620, USA
| | - Siyu Zhu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zheng Wang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Chunxian Guo
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Changming Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Zheng Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Junsheng Wu
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yizhong Huang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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4
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van Efferen C, Hall J, Atodiresei N, Boix V, Safeer A, Wekking T, Vinogradov NA, Preobrajenski AB, Knudsen J, Fischer J, Jolie W, Michely T. 2D Vanadium Sulfides: Synthesis, Atomic Structure Engineering, and Charge Density Waves. ACS NANO 2024; 18:14161-14175. [PMID: 38771774 PMCID: PMC11155258 DOI: 10.1021/acsnano.3c05907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 04/18/2024] [Accepted: 04/30/2024] [Indexed: 05/23/2024]
Abstract
Two ultimately thin vanadium-rich 2D materials based on VS2 are created via molecular beam epitaxy and investigated using scanning tunneling microscopy, X-ray photoemission spectroscopy, and density functional theory (DFT) calculations. The controlled synthesis of stoichiometric single-layer VS2 or either of the two vanadium-rich materials is achieved by varying the sample coverage and sulfur pressure during annealing. Through annealing of small stoichiometric single-layer VS2 islands without S pressure, S-vacancies spontaneously order in 1D arrays, giving rise to patterned adsorption. Via the comparison of DFT calculations with scanning tunneling microscopy data, the atomic structure of the S-depleted phase, with a stoichiometry of V4S7, is determined. By depositing larger amounts of vanadium and sulfur, which are subsequently annealed in a S-rich atmosphere, self-intercalated ultimately thin V5S8-derived layers are obtained, which host 2 × 2 V-layers between sheets of VS2. We provide atomic models for the thinnest V5S8-derived structures. Finally, we use scanning tunneling spectroscopy to investigate the charge density wave observed in the 2D V5S8-derived islands.
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Affiliation(s)
- Camiel van Efferen
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
| | - Joshua Hall
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
| | - Nicolae Atodiresei
- Peter
Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich, Wilhelm-Johnen Straße, 52428 Jülich, Germany
| | - Virginia Boix
- Division
of Synchrotron Radiation Research, Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
| | - Affan Safeer
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
| | - Tobias Wekking
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
| | | | | | - Jan Knudsen
- Division
of Synchrotron Radiation Research, Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
- MAX
IV Laboratory, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
- NanoLund,
Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
| | - Jeison Fischer
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
| | - Wouter Jolie
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
| | - Thomas Michely
- II.
Physikalisches Institut, Universität
zu Köln, Zülpicher
Straße 77, 50937 Köln, Germany
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5
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Gong F, Chen Z, Zhao Y, Zhang H, Zeng G, Yao C, Gong L, Zhang Y, Liu J, Wei S. Trifunctional L-Cysteine Assisted Construction of MoO 2/MoS 2/C Nanoarchitecture Toward High-Rate Sodium Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307986. [PMID: 38189535 DOI: 10.1002/smll.202307986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/11/2023] [Indexed: 01/09/2024]
Abstract
The volume collapse and slow kinetics reaction of anode materials are two key issues for sodium ion batteries (SIBs). Herein, an "embryo" strategy is proposed for synthesis of nanorod-embedded MoO2/MoS2/C network nanoarchitecture as anode for SIBs with high-rate performance. Interestingly, L-cysteine which plays triple roles including sulfur source, reductant, and carbon source can be utilized to produce the sulfur vacancy-enriched heterostructure. Specifically, L-cysteine can combine with metastable monoclinic MoO3 nanorods at room temperature to encapsulate the "nutrient" of MoOx analogues (MoO2.5(OH)0.5 and MoO3·0.5H2O) and hydrogen-deficient L-cysteine in the "embryo" precursor affording for subsequent in situ multistep heating treatment. The resultant MoO2/MoS2/C presents a high-rate capability of 875 and 420 mAh g-1 at 0.5 and 10 A g-1, respectively, which are much better than the MoS2-based anode materials reported by far. Finite element simulation and analysis results verify that the volume expansion can be reduced to 42.8% from 88.8% when building nanorod-embedded porous network structure. Theoretical calculations reveal that the sulfur vacancies and heterointerface engineering can promote the adsorption and migration of Na+ leading to highly enhanced thermodynamic and kinetic reaction. The work provides an efficient approach to develop advanced electrode materials for energy storage.
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Affiliation(s)
- Feilong Gong
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Zhilin Chen
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yang Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Hongge Zhang
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Guang Zeng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Cuijie Yao
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Lihua Gong
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yonghui Zhang
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Jian Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
- DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering and Advanced Technology Institute of University of Surrey, Guildford, Surrey, GU2 7XH, UK
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, P. R. China
| | - Shizhong Wei
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
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6
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Li L, Shinde SL, Fujita T, Kondo T. Ball-milled MoS 2 with graphene shows enhanced catalytic activity for hydrogen evolution reaction. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2024; 25:2359360. [PMID: 38882258 PMCID: PMC11177716 DOI: 10.1080/14686996.2024.2359360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 05/20/2024] [Indexed: 06/18/2024]
Abstract
The hydrogen evolution reaction (HER) is an important phenomenon in water splitting. Consequently, the development of an active, earth-abundant, and inexpensive HER catalyst is highly desired. MoS2 has drawn considerable interest as an HER catalyst because it is composed of non-precious metal and exhibits high catalytic activity in the nanosheet form. In this study, size-controlled MoS2 particles were synthesized by ball milling. The as-prepared samples exhibited significantly enhanced electrochemical and catalytic properties compared to those of pristine bulk MoS2. Furthermore, the HER activity improved further upon the introduction of graphene into the as-prepared ball-milled samples. In particular, the MoS2 sample ball-milled for 12 h mixed with graphene exhibited optimal performance, showing an overpotential (160 mV at 10 mA cm-2) that was ~ 335 mV lower than that of pristine bulk MoS2. The superior catalytic activity was ascribed to the exposed edge sites, sulfur vacancies, and 1T phase of MoS2, as well as the noteworthy fortifying effect of the electronically conductive flexible material, graphene. The results provide a promising strategy for its application as an efficient and stable HER catalyst.
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Affiliation(s)
- Linghui Li
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
| | - Satish Laxman Shinde
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
- Department of Physics, Indian Institute of Technology Hyderabad, Kandi, India
| | - Takeshi Fujita
- School of Engineering Science, Kochi University of Technology, Kochi, Japan
| | - Takahiro Kondo
- Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
- Tsukuba Research Center for Energy Materials Science, Institute of Pure and Applied Sciences and R&D Center for Zero CO2 Emission with Functional Materials, University of Tsukuba, Tsukuba, Japan
- Advanced Institute for Materials Research, Tohoku University, Sendai, Japan
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7
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Wu Y, Wu R, Zhou H, Zeng G, Kuang C, Li C. Sustainable electro-Fenton simultaneous reduction of Cr (VI) and degradation of organic pollutants via dual-site porous carbon cathode driving uncoordinated molybdenum sites conversion. WATER RESEARCH 2024; 259:121835. [PMID: 38810345 DOI: 10.1016/j.watres.2024.121835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024]
Abstract
Simultaneous removal of heavy metals and organic contaminants remains a substantial challenge in the electro-Fenton (EF) system. Herein, we propose a facile and sustainable "iron-free" EF system capable of simultaneously removing hexavalent chromium (Cr (VI)) and para-chlorophenol (4-CP). The system comprises a nitrogen-doped and carbon-deficient porous carbon (dual-site NPC-D) cathode coupled with a MoS2 nanoarray promoter (MoS2 NA). The NPC-D/MoS2 NA system exhibits exceptional synergistic electrocatalytic activity, with removal rates for Cr (VI) and 4-CP that are 20.3 and 4.4 times faster, respectively, compared to the NPC-D system. Mechanistic studies show that the dual-site structure of NPC-D cathode favors the two-electron oxygen reduction pathway with a selectivity of 81 %. Furthermore, an electric field-driven uncoordinated Mo valence state conversion of MoS2 NA enchances the generation of dynamic singlet oxygen and hydroxyl radicals. Notably, this system shows outstanding recyclability, resilience in real wastewater, and sustainability during a 3 L scale-up operation, while effectively mitigating toxicity. Overall, this study presents an effective approach for treating multiple-component wastewater and highlights the importance of structure-activity correlation in synergistic electrocatalysis.
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Affiliation(s)
- Yaoyao Wu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering Department, Sun Yat-sen University, 510006, Guangzhou, China
| | - Rifeng Wu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering Department, Sun Yat-sen University, 510006, Guangzhou, China
| | - Hao Zhou
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering Department, Sun Yat-sen University, 510006, Guangzhou, China
| | - Guoshen Zeng
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering Department, Sun Yat-sen University, 510006, Guangzhou, China
| | - Chaozhi Kuang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering Department, Sun Yat-sen University, 510006, Guangzhou, China
| | - Chuanhao Li
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering Department, Sun Yat-sen University, 510006, Guangzhou, China.
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8
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Feidenhans’l A, Regmi YN, Wei C, Xia D, Kibsgaard J, King LA. Precious Metal Free Hydrogen Evolution Catalyst Design and Application. Chem Rev 2024; 124:5617-5667. [PMID: 38661498 PMCID: PMC11082907 DOI: 10.1021/acs.chemrev.3c00712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 04/26/2024]
Abstract
The quest to identify precious metal free hydrogen evolution reaction catalysts has received unprecedented attention in the past decade. In this Review, we focus our attention to recent developments in precious metal free hydrogen evolution reactions in acidic and alkaline electrolyte owing to their relevance to commercial and near-commercial low-temperature electrolyzers. We provide a detailed review and critical analysis of catalyst activity and stability performance measurements and metrics commonly deployed in the literature, as well as review best practices for experimental measurements (both in half-cell three-electrode configurations and in two-electrode device testing). In particular, we discuss the transition from laboratory-scale hydrogen evolution reaction (HER) catalyst measurements to those in single cells, which is a critical aspect crucial for scaling up from laboratory to industrial settings but often overlooked. Furthermore, we review the numerous catalyst design strategies deployed across the precious metal free HER literature. Subsequently, we showcase some of the most commonly investigated families of precious metal free HER catalysts; molybdenum disulfide-based, transition metal phosphides, and transition metal carbides for acidic electrolyte; nickel molybdenum and transition metal phosphides for alkaline. This includes a comprehensive analysis comparing the HER activity between several families of materials highlighting the recent stagnation with regards to enhancing the intrinsic activity of precious metal free hydrogen evolution reaction catalysts. Finally, we summarize future directions and provide recommendations for the field in this area of electrocatalysis.
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Affiliation(s)
| | - Yagya N. Regmi
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Manchester M1 5GD, U.K.
- Manchester
Fuel Cell Innovation Centre, Manchester
Metropolitan University, Manchester M1 5GD, U.K.
| | - Chao Wei
- Department
of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Dong Xia
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Manchester M1 5GD, U.K.
- Manchester
Fuel Cell Innovation Centre, Manchester
Metropolitan University, Manchester M1 5GD, U.K.
| | - Jakob Kibsgaard
- Department
of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Laurie A. King
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Manchester M1 5GD, U.K.
- Manchester
Fuel Cell Innovation Centre, Manchester
Metropolitan University, Manchester M1 5GD, U.K.
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9
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Chen C, Li Q, Wang F, Hu C, Ma J. Dual-vacancies modulation of 1T/2H heterostructured MoS 2-CdS nanoflowers via radiolytic radical chemistry for efficient photocatalytic H 2 evolution. J Colloid Interface Sci 2024; 661:345-357. [PMID: 38301471 DOI: 10.1016/j.jcis.2024.01.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/17/2024] [Accepted: 01/27/2024] [Indexed: 02/03/2024]
Abstract
Precise defect engineering of photocatalysts is highly demanding but remains a challenge. Here, we developed a facile and controllable γ-ray radiation strategy to assemble dual-vacancies confined MoS2-CdS-γ nanocomposite photocatalyst. We showed the solvated electron induced homogeneous growth of defects-rich CdS nanoparticles, while the symbiotic •OH radicals etched flower-like 1T/2H MoS2 substrate surfaces. The optimal MoS2-CdS-γ exhibited a H2 evolution rate of up to 37.80 mmol/h/g under visible light irradiation, which was 36.7 times higher than that of bare CdS-γ, and far superior to those synthesized by hydrothermal method. The microscopic characterizations and theoretical calculations revealed the formation of such unprecedented dual-sulfur-vacancies ensured the tight interfacial contact for fast charge separation. Besides, the existence of 1T-MoS2 phase further improved the conductivity and strengthened the adsorption interaction with H+ intermediate. Therefore, the radiolytic radical chemistry offered a facile, ambient and effective synthetic strategy to improve the catalytic performances of photocatalytic materials.
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Affiliation(s)
- Chong Chen
- Department of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, PR China.
| | - Qiuhao Li
- Department of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, PR China
| | - Fengqing Wang
- Department of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, PR China
| | - Changjiang Hu
- Department of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, PR China
| | - Jun Ma
- Department of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, PR China; School of Nuclear Science and Technology, University of Science and Technology of China, Anhui 230026, PR China.
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10
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Nie W, Ren T, Zhao W, Yao B, Yuan W, Liu X, Abdullah, Zhang J, Liu Q, Zhang T, Tang S, He C, Fang Y, Li X. Electrochemical Generation of Te Vacancy Pairs in PtTe for Efficient Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2024; 16:21828-21837. [PMID: 38639177 DOI: 10.1021/acsami.4c01273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Two-dimensional (2D) van der Waals materials are increasingly seen as potential catalysts due to their unique structures and unmatched properties. However, achieving precise synthesis of these remarkable materials and regulating their atomic and electronic structures at the most fundamental level to enhance their catalytic performance remain a significant challenge. In this study, we synthesized single-crystal bulk PtTe crystals via chemical vapor transport and subsequently produced atomically thin, large PtTe nanosheets (NSs) through electrochemical cathode intercalation. These NSs are characterized by a significant presence of Te vacancy pairs, leading to undercoordinated Pt atoms on their basal planes. Experimental and theoretical studies together reveal that Te vacancy pairs effectively optimize and enhance the electronic properties (such as charge distribution, density of states near the Fermi level, and d-band center) of the resultant undercoordinated Pt atoms. This optimization results in a significantly higher percentage of dangling O-H water, a decreased energy barrier for water dissociation, and an increased binding affinity of these Pt atoms to active hydrogen intermediates. Consequently, PtTe NSs featuring exposed and undercoordinated Pt atoms demonstrate outstanding electrocatalytic activity in hydrogen evolution reactions, significantly surpassing the performance of standard commercial Pt/C catalysts.
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Affiliation(s)
- Wenjie Nie
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, China
| | - Taotao Ren
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, China
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Wen Zhao
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Bingqing Yao
- Department of Materials Science and Engineering, National University of Singapore, Singapore 119077, Singapore
| | - Wenhao Yuan
- Department of Materials Science and Engineering, National University of Singapore, Singapore 119077, Singapore
| | - Xuan Liu
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Abdullah
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jiaxun Zhang
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, Shaanxi 710054, China
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Qiyuan Liu
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Tianqing Zhang
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Shangfeng Tang
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Chi He
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yiyun Fang
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Xinzhe Li
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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11
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Wang C, Yang W, Ding Y, Bai P, Zeng Z, Lv H, Li X, Wang H, Wang Z, Zeng M, Wu X, Fu L. Interlayer Biatomic Pair Bridging the van der Waals Gap for 100% Activation of 2D Layered Material. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308984. [PMID: 38271565 DOI: 10.1002/adma.202308984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/20/2023] [Indexed: 01/27/2024]
Abstract
2D layered materials are regarded as prospective catalyst candidates due to their advantageous atomic exposure ratio. Nevertheless, the predominant population of atoms residing on the basal plane with saturated coordination, exhibit inert behavior, while a mere fraction of atoms located at the periphery display reactivity. Here, a novel approach is reported to attain complete atom activation in 2D layered materials through the construction of an interlayer biatomic pair bridge. The atoms in question have been strategically optimized to achieve a highly favorable state for the adsorption of intermediates. This optimization results from the introduction of new gap states around the Fermi level. Moreover, the presence of the interlayer bridge facilitates the electron transfer across the van der Waals gap, thereby enhancing the reaction kinetics. The hydrogen evolution reaction exhibits an impressive ultrahigh current density of 2000 mA cm-2 at 397 mV, surpassing the pristine MoS2 by approximately two orders of magnitude (26 mA cm-2 at 397 mV). This study provides new insights for enhancing the efficacy of 2D layered catalysts.
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Affiliation(s)
- Chenyang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wenxuan Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yiran Ding
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, China
| | - Pengfei Bai
- CAS Key Laboratory of Materials for Energy Conversion, School of Chemistry and Materials Science. CAS Center for Excellence in Nanoscience and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, 230026, China
| | - Ziyue Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Haifeng Lv
- CAS Key Laboratory of Materials for Energy Conversion, School of Chemistry and Materials Science. CAS Center for Excellence in Nanoscience and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, 230026, China
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Xiang Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Huiliu Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhouyang Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Mengqi Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xiaojun Wu
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230088, China
| | - Lei Fu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, China
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12
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Kang J, Peng Y, Zhu L, Tang Y, Teng F, Guo G, Xiang Y, Huang Y, Wu X, Wu X. 3D Fast Sodium Transport Network of MoS 2 Endowed by Coupling of Sulfur Vacancies and Sn Doping for Outstanding Sodium Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309112. [PMID: 38150610 DOI: 10.1002/smll.202309112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/23/2023] [Indexed: 12/29/2023]
Abstract
A sulfur vacancy-rich, Sn-doped as well as carbon-coated MoS2 composite (Vs-SMS@C) is rationally synthesized via a simple hydrothermal method combined with ball-milling reduction, which enhances the sodium storage performance. Benefiting from the 3D fast Na+ transport network composed of the defective carbon coating, Mo─S─C bonds, enlarged interlayer spacing, S-vacancies, and lattice distortion in the composite, the Na+ storage kinetics is significantly accelerated. As expected, Vs-SMS@C releases an ultrahigh reversible capacity of 1089 mAh g-1 at 0.1 A g-1, higher than the theoretical capacity. It delivers a satisfactory capacity of 463 mAh g-1 at a high current density of 10 A g-1, which is the state-of-the-art rate capability compared to other MoS2 based sodium ion battery anodes to the knowledge. Moreover, a super long-term cycle stability is achieved by Vs-SMS@C, which keeps 91.6% of the initial capacity after 3000 cycles under the current density of 5 A g-1 in the voltage of 0.3-3.0 V. The sodium storage mechanism of Vs-SMS@C is investigated by employing electrochemical methods and ex situ techniques. The synergistic effect between S-vacancies and doped-Sn is evidenced by DFT calculations. This work opens new ideas for seeking excellent metal sulfide anodes.
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Affiliation(s)
- Jia Kang
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Yan Peng
- Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, Laboratory for Quantum Engineering and Micro-Nano Energy Technology, and School of Physics and Optoelectronics, Xiangtan University, Hunan, 411105, China
| | - Ling Zhu
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Yao Tang
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Feiyang Teng
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Gencai Guo
- Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, Laboratory for Quantum Engineering and Micro-Nano Energy Technology, and School of Physics and Optoelectronics, Xiangtan University, Hunan, 411105, China
| | - Yanhong Xiang
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Yonggang Huang
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Xianming Wu
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
| | - Xianwen Wu
- School of Physics and Electromechanical Engineering, School of Chemistry and Chemical Engineering, and Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, Jishou University, Jishou, 416000, China
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13
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Peng Y, Hu J, Huan Y, Zhang Y. Chemical vapor deposition growth of graphene and other nanomaterials with 3D architectures towards electrocatalysis and secondary battery-related applications. NANOSCALE 2024; 16:7734-7751. [PMID: 38563120 DOI: 10.1039/d3nr06143d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Recently, two-dimensional (2D) layered materials, such as graphene and transition metal dichalcogenides (TMDCs), have garnered a lot of attention in energy storage/conversion-related fields due to their novel physical and chemical properties. Constructing flat graphene and TMDCs nanosheets into 3D architectures can significantly increase their exposed surface area and prevent the restacking of adjacent 2D layers, thus dramatically promoting their applications in various energy-related fields. Chemical Vapor Deposition (CVD) is a low-cost, facile, and scalable method, which has been widely employed to produce high-quality graphene and TMDCs nanosheets with 3D architectures. During the CVD process, the morphologies and properties of the 3D architectures of such 2D materials can be designed by selecting substrates with different compositions, stacking geometries, and micro-structures. In this review, we focus on the recent advances in the CVD synthesis of graphene, TMDCs, and their hybrids with 3D architectures on different 3D-structured substrates, as well as their applications in the electrocatalytic hydrogen evolution reaction (HER) and various secondary batteries. In addition, the challenges and future prospects for the CVD synthesis and energy-related applications of these unique layered materials will also be discussed.
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Affiliation(s)
- You Peng
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, People's Republic of China
| | - Jingyi Hu
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, People's Republic of China
| | - Yahuan Huan
- School of Materials Science and Engineering, Peking University, Beijing 100871, People's Republic of China.
| | - Yanfeng Zhang
- School of Materials Science and Engineering, Peking University, Beijing 100871, People's Republic of China.
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14
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Yang C, Yue J, Wang G, Luo W. Activating and Identifying the Active Site of RuS 2 for Alkaline Hydrogen Oxidation Electrocatalysis. Angew Chem Int Ed Engl 2024; 63:e202401453. [PMID: 38366202 DOI: 10.1002/anie.202401453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
Searching for highly efficient and economical electrocatalysts for alkaline hydrogen oxidation reaction (HOR) is crucial for the development of alkaline polymer membrane fuel cells. Here, we report a valid strategy to active pyrite-type RuS2 for alkaline HOR electrocatalysis by introducing sulfur vacancies. The obtained S-vacancies modified RuS2-x exhibits outperformed HOR activity with a current density of 0.676 mA cm-2 and mass activity of 1.43 mA μg-1, which are 15-fold and 40-fold improvement than those of Ru catalyst. In situ Raman spectra demonstrate the formation of S-H bond during the HOR process, identifying the S atom of RuS2-x is the real active site for HOR catalysis. Density functional theory calculations and experimental results including in situ surface-enhanced infrared absorption spectroscopy suggest the introduction of S vacancies can rationally modify the p orbital of S atoms, leading to enhanced binding strength between the S sites and H atoms on the surface of RuS2-x, together with the promoted connectivity of hydrogen-bonding network and lowered water formation energy, contributes to the enhanced HOR performance.
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Affiliation(s)
- Chaoyi Yang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Jianchao Yue
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Guangqin Wang
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
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15
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Zhang H, Wu F, Huang R, Liu X, Zhang Z, Yao T, Zhang Y, Wu Y. Symmetry Evolution Induced 2D Pt Single Atom Catalyst with High Density for Alkaline Hydrogen Oxidation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2404672. [PMID: 38634272 DOI: 10.1002/adma.202404672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/11/2024] [Indexed: 04/19/2024]
Abstract
The performance of single-atom catalysts is greatly influenced by the chemical environment surrounding the central atom. Here, a salt-assisted method is employed to transform the tetrahedral coordination structure of zeolitic imidazolate frameworks - 8 (ZIF-8) into a planar square coordination structure without altering the ligands. During the subsequent carbonization process, concurrent with the evaporation of zinc atoms, the structure of the nitrogen and carbon carriers (NC carriers) undergoes a transition from five-membered rings to six-membered rings to preserve the 2D structure. This transition results in the generation of additional defect sites on the 2D-NC substrates. Hence, the Pt single-atom catalysts with planar square coordination symmetries can be precisely prepared via electrodeposition (denoted as 2D-Pt SAC). The Pt loading of 2D-Pt SAC is 0.49 ± 0.03 µg cm-2, higher than that of 3D-Pt SAC (0.37 ± 0.04 µg cm-2). In the context of the hydrogen oxidation reaction electrocatalysis, under an overpotential of 50 mV, these single-atom catalysts with 2D coordination exhibit mass activities of 2396 A gPt -1 (32 times higher than commercial Pt/C catalyst, 2 times higher than 3D-PtNC).
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Affiliation(s)
- Haoran Zhang
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei , 230001, China
| | - Feng Wu
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei , 230001, China
| | - Rui Huang
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei , 230001, China
| | - Xiaokang Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei , 230026, China
| | - Zhiwen Zhang
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei , 230001, China
| | - Tao Yao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei , 230026, China
| | - Yu Zhang
- Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei , 230001, China
| | - Yuen Wu
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei , 230001, China
- Deep Space Exploration Laboratory/School of Chemistry and Materials Science, University of Science and Technology of China, Hefei , 230026, China
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16
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Jiang Y, Sun H, Guo J, Liang Y, Qin P, Yang Y, Luo L, Leng L, Gong X, Wu Z. Vacancy Engineering in 2D Transition Metal Chalcogenide Photocatalyst: Structure Modulation, Function and Synergy Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310396. [PMID: 38607299 DOI: 10.1002/smll.202310396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/08/2024] [Indexed: 04/13/2024]
Abstract
Transition metal chalcogenides (TMCs) are widely used in photocatalytic fields such as hydrogen evolution, nitrogen fixation, and pollutant degradation due to their suitable bandgaps, tunable electronic and optical properties, and strong reducing ability. The unique 2D malleability structure provides a pre-designed platform for customizable structures. The introduction of vacancy engineering makes up for the shortcomings of photocorrosion and limited light response and provides the greatest support for TMCs in terms of kinetics and thermodynamics in photocatalysis. This work reviews the effect of vacancy engineering on photocatalytic performance based on 2D semiconductor TMCs. The characteristics of vacancy introduction strategies are summarized, and the development of photocatalysis of vacancy engineering TMCs materials in energy conversion, degradation, and biological applications is reviewed. The contribution of vacancies in the optical range and charge transfer kinetics is also discussed from the perspective of structure manipulation. Vacancy engineering not only controls and optimizes the structure of the TMCs, but also improves the optical properties, charge transfer, and surface properties. The synergies between TMCs vacancy engineering and atomic doping, other vacancies, and heterojunction composite techniques are discussed in detail, followed by a summary of current trends and potential for expansion.
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Affiliation(s)
- Yi Jiang
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Haibo Sun
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Jiayin Guo
- School of Resources and Environment, Hunan University of Technology and Business, Changsha, 410205, P. R. China
| | - Yunshan Liang
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Pufeng Qin
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Yuan Yang
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Lin Luo
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Lijian Leng
- School of Energy Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Xiaomin Gong
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Zhibin Wu
- Key Laboratory for Rural Ecosystem Health in the Dongting Lake Area of Hunan Province, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, P. R. China
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17
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Zhan W, Zhai X, Li Y, Wang M, Wang H, Wu L, Tang X, Zhang H, Ye B, Tang K, Wang G, Zhou M. Regulating Local Atomic Environment around Vacancies for Efficient Hydrogen Evolution. ACS NANO 2024; 18:10312-10323. [PMID: 38533779 DOI: 10.1021/acsnano.4c02283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Defect engineering is essential for the development of efficient electrocatalysts at the atomic level. While most work has focused on various vacancies as effective catalytic modulators, little attention has been paid to the relation between the local atomic environment of vacancies and catalytic activities. To face this challenge, we report a facile synthetic approach to manipulate the local atomic environments of vacancies in MoS2 with tunable Mo-to-S ratios. Our studies indicate that the MoS2 with more Mo terminated vacancies exhibits better hydrogen evolution reaction (HER) performance than MoS2 with S terminated vacancies and defect-free MoS2. The improved performance originates from the adjustable orbital orientation and distribution, which is beneficial for regulating H adsorption and eventually boosting the intrinsic per-site activity. This work uncovers the underlying essence of the local atomic environment of vacancies on catalysis and provides a significant extension of defect engineering for the rational design of transition metal dichalcogenides (TMDs) catalysts and beyond.
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Affiliation(s)
- Wenqi Zhan
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Xingwu Zhai
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Yuhuan Li
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Mei Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Hang Wang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Liang Wu
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Xinfeng Tang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Hongjun Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Bangjiao Ye
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
| | - Kaibin Tang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Gongming Wang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Min Zhou
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
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18
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Wang M, Ma W, Tan C, Qiu Z, Hu L, Lv X, Li Q, Dang J. Designing Efficient Non-Precious Metal Electrocatalysts for High-Performance Hydrogen Production: A Comprehensive Evaluation Strategy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306631. [PMID: 37988645 DOI: 10.1002/smll.202306631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/24/2023] [Indexed: 11/23/2023]
Abstract
Developing abundant Earth-element and high-efficient electrocatalysts for hydrogen production is crucial in effectively reducing the cost of green hydrogen production. Herein, a strategy by comprehensively considering the computational chemical indicators for H* adsorption/desorption and dehydrogenation kinetics to evaluate the hydrogen evolution performance of electrocatalysts is proposed. Guided by the proposed strategy, a series of catalysts are constructed through a dual transition metal doping strategy. Density Functional Theory (DFT) calculations and experimental chemistry demonstrate that cobalt-vanadium co-doped Ni3N is an exceptionally ideal catalyst for hydrogen production from electrolyzed alkaline water. Specifically, Co,V-Ni3N requires only 10 and 41 mV in alkaline electrolytes and alkaline seawater, respectively, to achieve a hydrogen evolution current density of 10 mA cm-2. Moreover, it can operate steadily at a large industrial current density of 500 mA cm-2 for extended periods. Importantly, this evaluation strategy is extended to single-metal-doped Ni3N and found that it still exhibits significant universality. This study not only presents an efficient non-precious metal-based electrocatalyst for water/seawater electrolysis but also provides a significant strategy for the design of high-performance catalysts of electrolyzed water.
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Affiliation(s)
- Meng Wang
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
| | - Wansen Ma
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
| | - Chaowen Tan
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
| | - Zeming Qiu
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
| | - Liwen Hu
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
| | - Xuewei Lv
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
| | - Qian Li
- National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, P. R. China
- State Key Laboratory of Advanced Special Steels & Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Jie Dang
- College of Materials Science and Engineering, Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing, 400044, P. R. China
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19
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Man P, Jiang S, Leung KH, Lai KH, Guang Z, Chen H, Huang L, Chen T, Gao S, Peng YK, Lee CS, Deng Q, Zhao J, Ly TH. Salt-Induced High-Density Vacancy-Rich 2D MoS 2 for Efficient Hydrogen Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2304808. [PMID: 37505096 DOI: 10.1002/adma.202304808] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/24/2023] [Indexed: 07/29/2023]
Abstract
Emerging non-noble metal 2D catalysts, such as molybdenum disulfide (MoS2), hold great promise in hydrogen evolution reactions. The sulfur vacancy is recognized as a key defect type that can activate the inert basal plane to improve the catalytic performance. Unfortunately, the method of introducing sulfur vacancies is limited and requires costly post-treatment processes. Here, a novel salt-assisted chemical vapor deposition (CVD) method is demonstrated for synthesizing ultrahigh-density vacancy-rich 2H-MoS2, with a controllable sulfur vacancy density of up to 3.35 × 1014 cm-2. This approach involves a pre-sprayed potassium chloridepromoter on the growth substrate. The generation of such defects is closely related to ion adsorption in the growth process, the unstable MoS2-K-H2O triggers the formation of sulfur vacancies during the subsequent transfer process, and it is more controllable and nondestructive when compared to traditional post-treatment methods. The vacancy-rich monolayer MoS2 exhibits exceptional catalytic activity based on the microcell measurements, with an overpotential of ≈158.8 mV (100 mA cm-2) and a Tafel slope of 54.3 mV dec-1 in 0.5 m H2SO4 electrolyte. These results indicate a promising opportunity for modulating sulfur vacancy defects in MoS2 using salt-assisted CVD growth. This approach represents a significant leap toward achieving better control over the catalytic performances of 2D materials.
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Affiliation(s)
- Ping Man
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Shan Jiang
- Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong, 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Ka Ho Leung
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Ka Hei Lai
- Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong, 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Zhiqiang Guang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Honglin Chen
- Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong, 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Lingli Huang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Tianren Chen
- Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong, 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Shan Gao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Yung-Kang Peng
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Chun-Sing Lee
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Qingming Deng
- Physics department and Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian, 223300, P. R. China
| | - Jiong Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong, 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Thuc Hue Ly
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Chemistry Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
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20
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Wang C, Li Y, Wang Y, Zhang Y, Feng J, An X, Wang R, Xu Y, Cheng X. Removal of sulfonamide antibiotics by non-free radical dominated peroxymonosulfate oxidation catalyzed by cobalt-doped sulfur-containing biochar from sludge. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133535. [PMID: 38271878 DOI: 10.1016/j.jhazmat.2024.133535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/27/2024]
Abstract
The reuse of activated sludge as a solid waste is severely underutilized due to the limitations of traditional treatment and disposal methods. Given that, the sulfur-containing activated sludge catalyst doped with cobalt (SK-Co(1.0)) was successfully prepared by one-step pyrolysis and calcinated at 850 ℃. The generation of CoSx was successfully characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), indicating that the sulfur inside the sludge was the anchoring site for the externally doped cobalt. Cobalt (Ⅱ) (Co2+), as the main adsorption site for peroxymonosulfate(PMS), formed a complex (SK-Co(1.0)-PMS* ) and created the conditions for the generation of surface radicals. The SK-Co(1.0)/PMS system showed high degradation efficiency and apparent rate constants for Sulfamethoxazole (SMX) (91.56% and 0.187 min-1) and Sulfadiazine (SDZ) (90.73% and 0.047 min-1) within 10 min and 30 min, respectively. Three sites of generation of 1O2, which played a dominant role in the degradation of SMX and SDZ in the SK-Co(1.0)/PMS system, were summarized as:sulfur vacancies (SVs), the Co3+/Co2+ cycles promoted by sulfur(S) species, oxygen-containing functional groups (C-O). The degradation mechanisms and pathways had been thoroughly investigated using DFT calculations. In view of this, a new idea for the resource utilization of activated sludge solid waste was provided and a new strategy for wastewater remediation was proposed.
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Affiliation(s)
- Chen Wang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Yuanyuan Li
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Yukun Wang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Yan Zhang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Jingbo Feng
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Xiaomeng An
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Rui Wang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China
| | - Yinyin Xu
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China.
| | - Xiuwen Cheng
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, PR China; Key Laboratory of Pollutant Chemistry and Environmental Treatment, College of Chemistry and Environmental Science, Yili Normal University, Yining 835000, PR China.
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21
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Liu Y, Cai C, Zhu S, Zheng Z, Li G, Chen H, Li C, Sun H, Chou IM, Yu Y, Mei S, Wang L. Enhanced Hydrogen Evolution Catalysis of Pentlandite due to the Increases in Coordination Number and Sulfur Vacancy during Cubic-Hexagonal Phase Transition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311161. [PMID: 38456389 DOI: 10.1002/smll.202311161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/03/2024] [Indexed: 03/09/2024]
Abstract
The search for new phases is an important direction in materials science. The phase transition of sulfides results in significant changes in catalytic performance, such as MoS2 and WS2 . Cubic pentlandite [cPn, (Fe, Ni)9 S8 ] can be a functional material in batteries, solar cells, and catalytic fields. However, no report about the material properties of other phases of pentlandite exists. In this study, the unit-cell parameters of a new phase of pentlandite, sulfur-vacancy enriched hexagonal pentlandite (hPn), and the phase boundary between cPn and hPn are determined for the first time. Compared to cPn, the hPn shows a high coordination number, more sulfur vacancies, and high conductivity, which result in significantly higher hydrogen evolution performance of hPn than that of cPn and make the non-nano rock catalyst hPn superior to other most known nanosulfide catalysts. The increase of sulfur vacancies during phase transition provides a new approach to designing functional materials.
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Affiliation(s)
- Yuegao Liu
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Chao Cai
- College of Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Shengcai Zhu
- School of Materials, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhi Zheng
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Guowu Li
- Crystal Structure Laboratory, Science Research Institute, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Haiyan Chen
- Mineral Physics Institute, Stony Brook University, Stony Brook, New York, 11794-2100, USA
- Argonne National Laboratory, Chicago, 60439, USA
| | - Chao Li
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Haiyan Sun
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - I-Ming Chou
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Yanan Yu
- Sichuan Energy Internet Research Institute, Tsinghua University, Chengdu, 610042, China
| | - Shenghua Mei
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Liping Wang
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
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22
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Yan Q, Kar S, Chowdhury S, Bansil A. The Case for a Defect Genome Initiative. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2303098. [PMID: 38195961 DOI: 10.1002/adma.202303098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/12/2023] [Indexed: 01/11/2024]
Abstract
The Materials Genome Initiative (MGI) has streamlined the materials discovery effort by leveraging generic traits of materials, with focus largely on perfect solids. Defects such as impurities and perturbations, however, drive many attractive functional properties of materials. The rich tapestry of charge, spin, and bonding states hosted by defects are not accessible to elements and perfect crystals, and defects can thus be viewed as another class of "elements" that lie beyond the periodic table. Accordingly, a Defect Genome Initiative (DGI) to accelerate functional defect discovery for energy, quantum information, and other applications is proposed. First, major advances made under the MGI are highlighted, followed by a delineation of pathways for accelerating the discovery and design of functional defects under the DGI. Near-term goals for the DGI are suggested. The construction of open defect platforms and design of data-driven functional defects, along with approaches for fabrication and characterization of defects, are discussed. The associated challenges and opportunities are considered and recent advances towards controlled introduction of functional defects at the atomic scale are reviewed. It is hoped this perspective will spur a community-wide interest in undertaking a DGI effort in recognition of the importance of defects in enabling unique functionalities in materials.
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Affiliation(s)
- Qimin Yan
- Department of Physics, Northeastern University, Boston, MA 02115, USA
| | - Swastik Kar
- Department of Physics, Northeastern University, Boston, MA 02115, USA
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Sugata Chowdhury
- Department of Physics and Astrophysics, Howard University, Washington, DC 20059, USA
| | - Arun Bansil
- Department of Physics, Northeastern University, Boston, MA 02115, USA
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23
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Gu Z, Zhong D, Hou X, Wei X, Liu C, Zhang Y, Duan Z, Gu Z, Gong Q, Luo K. Unraveling Ros Conversion Through Enhanced Enzyme-Like Activity with Copper-Doped Cerium Oxide for Tumor Nanocatalytic Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307154. [PMID: 38161213 PMCID: PMC10953536 DOI: 10.1002/advs.202307154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Nanozyme catalytic therapy for cancer treatments has become one of the heated topics, and the therapeutic efficacy is highly correlated with their catalytic efficiency. In this work, three copper-doped CeO2 supports with various structures as well as crystal facets are developed to realize dual enzyme-mimic catalytic activities, that is superoxide dismutase (SOD) to reduce superoxide radicals to H2 O2 and peroxidase (POD) to transform H2 O2 to ∙OH. The wire-shaped CeO2 /Cu-W has the richest surface oxygen vacancies, and a low level of oxygen vacancy (Vo) formation energy, which allows for the elimination of intracellular reactive oxygen spieces (ROS) and continuous transformation to ∙OH with cascade reaction. Moreover, the wire-shaped CeO2 /Cu-W displays the highest toxic ∙OH production capacity in an acidic intracellular environment, inducing breast cancer cell death and pro-apoptotic autophagy. Therefore, wire-shaped CeO2 /Cu nanoparticles as an artificial enzyme system can have great potential in the intervention of intracellular ROS in cancer cells, achieving efficacious nanocatalytic therapy.
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Affiliation(s)
- Zhengxiang Gu
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Dan Zhong
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Xingyu Hou
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Xuelian Wei
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Caikun Liu
- National Engineering Research Center for BiomaterialsSichuan University29 Wangjiang RoadChengdu610064China
| | - Yechuan Zhang
- School of Chemistry and Materials ScienceNanjing Normal UniversityNanjing210023China
| | - Zhenyu Duan
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Zhongwei Gu
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
| | - Qiyong Gong
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
- Functional and molecular imaging Key Laboratory of Sichuan Provinceand Research Unit of PsychoradiologyChinese Academy of Medical SciencesChengdu610041China
| | - Kui Luo
- Department of RadiologyHuaxi MR Research Center (HMRRC)Frontiers Science Center for Disease‐Related Molecular NetworkState Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu610041China
- Functional and molecular imaging Key Laboratory of Sichuan Provinceand Research Unit of PsychoradiologyChinese Academy of Medical SciencesChengdu610041China
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24
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Cho YS, Kang J. Two-dimensional materials as catalysts, interfaces, and electrodes for an efficient hydrogen evolution reaction. NANOSCALE 2024; 16:3936-3950. [PMID: 38347766 DOI: 10.1039/d4nr00147h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Two-dimensional (2D) materials have been significantly investigated as electrocatalysts for the hydrogen evolution reaction (HER) over the past few decades due to their excellent electrocatalytic properties and their structural uniqueness including the atomically thin structure and abundant active sites. Recently, 2D materials with various electronic properties have not only been used as active catalytic materials, but also employed in other components of the HER electrodes including a conductive electrode layer and an interfacial layer to maximize the HER efficiency or utilized as templates for catalytic nanostructure growth. This review provides the recent progress and future perspectives of 2D materials as key components in electrocatalytic systems with an emphasis on the HER applications. We categorized the use of 2D materials into three types: a catalytic layer, an electrode for catalyst support, and an interlayer for enhancing charge transfer between the catalytic layer and the electrode. We first introduce various scalable synthesis methods of electrocatalytic-grade 2D materials, and we discuss the role of 2D materials as HER catalysts, an interface for efficient charge transfer, and an electrode and/or a growth template of nanostructured noble metals.
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Affiliation(s)
- Yun Seong Cho
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
| | - Joohoon Kang
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
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25
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Yan S, Chen X, Li W, Zhong M, Xu J, Xu M, Wang C, Pinna N, Lu X. Highly Active and Stable Alkaline Hydrogen Evolution Electrocatalyst Based on Ir-Incorporated Partially Oxidized Ru Aerogel under Industrial-Level Current Density. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307061. [PMID: 38072643 PMCID: PMC10870084 DOI: 10.1002/advs.202307061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/27/2023] [Indexed: 02/17/2024]
Abstract
The realization of large-scale industrial application of alkaline water electrolysis for hydrogen generation is severely hampered by the cost of electricity. Therefore, it is currently necessary to synthesize highly efficient electrocatalysts with excellent stability and low overpotential under an industrial-level current density. Herein, Ir-incorporated in partially oxidized Ru aerogel has been designed and synthesized via a simple in situ reduction strategy and subsequent oxidation process. The electrochemical measurements demonstrate that the optimized Ru98 Ir2 -350 electrocatalyst exhibits outstanding hydrogen evolution reaction (HER) performance in an alkaline environment (1 M KOH). Especially, at the large current density of 1000 mA cm-2 , the overpotential is as low as 121 mV, far exceeding the benchmark Pt/C catalyst. Moreover, the Ru98 Ir2 -350 catalyst also displays excellent stability over 1500 h at 1000 mA cm-2 , denoting its industrial applicability. This work provides an efficient route for developing highly active and ultra-stable electrocatalysts for hydrogen generation under industrial-level current density.
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Affiliation(s)
- Su Yan
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Xiaojie Chen
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Weimo Li
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Mengxiao Zhong
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Jiaqi Xu
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Meijiao Xu
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Ce Wang
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Nicola Pinna
- Department of Chemistry, IRIS Adlershof and the Center for the Science of Materials BerlinHumboldt‐Universität zu BerlinBrook‐Taylor‐Straße 212489BerlinGermany
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute, College of ChemistryJilin UniversityChangchun130012P. R. China
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26
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Hsueh JW, Kuo LH, Chen PH, Chen WH, Chuang CY, Kuo CN, Lue CS, Lai YL, Liu BH, Wang CH, Hsu YJ, Lin CL, Chou JP, Luo MF. Investigating the role of undercoordinated Pt sites at the surface of layered PtTe 2 for methanol decomposition. Nat Commun 2024; 15:653. [PMID: 38253575 PMCID: PMC10803346 DOI: 10.1038/s41467-024-44840-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Transition metal dichalcogenides, by virtue of their two-dimensional structures, could provide the largest active surface for reactions with minimal materials consumed, which has long been pursued in the design of ideal catalysts. Nevertheless, their structurally perfect basal planes are typically inert; their surface defects, such as under-coordinated atoms at the surfaces or edges, can instead serve as catalytically active centers. Here we show a reaction probability > 90 % for adsorbed methanol (CH3OH) on under-coordinated Pt sites at surface Te vacancies, produced with Ar+ bombardment, on layered PtTe2 - approximately 60 % of the methanol decompose to surface intermediates CHxO (x = 2, 3) and 35 % to CHx (x = 1, 2), and an ultimate production of gaseous molecular hydrogen, methane, water and formaldehyde. The characteristic reactivity is attributed to both the triangular positioning and varied degrees of oxidation of the under-coordinated Pt at Te vacancies.
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Affiliation(s)
- Jing-Wen Hsueh
- Department of Physics, National Central University, No. 300 Jhongda Rd., Jhongli District, Taoyuan City, 320317, Taiwan
| | - Lai-Hsiang Kuo
- Department of Physics, National Central University, No. 300 Jhongda Rd., Jhongli District, Taoyuan City, 320317, Taiwan
| | - Po-Han Chen
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Section 2 Kuang-Fu Road, Hsinchu, 300044, Taiwan
| | - Wan-Hsin Chen
- Department of Electrophysics, National Yang Ming Chiao Tung University, No. 1001 University Rd., Hsinchu, 300039, Taiwan
| | - Chi-Yao Chuang
- Department of Electrophysics, National Yang Ming Chiao Tung University, No. 1001 University Rd., Hsinchu, 300039, Taiwan
| | - Chia-Nung Kuo
- Department of Physics, National Cheng Kung University, No. 1 University Rd., Tainan, 701, Taiwan
- Taiwan Consortium of Emergent Crystalline Materials, National Science and Technology Council, Taipei, 10601, Taiwan
| | - Chin-Shan Lue
- Department of Physics, National Cheng Kung University, No. 1 University Rd., Tainan, 701, Taiwan
- Taiwan Consortium of Emergent Crystalline Materials, National Science and Technology Council, Taipei, 10601, Taiwan
- Program on Key Materials, Academy of Innovative Semiconductor and Sustainable Manufacturing, National Cheng Kung University, Tainan, 701, Taiwan
| | - Yu-Ling Lai
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Rd., Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Bo-Hong Liu
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Rd., Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Chia-Hsin Wang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Rd., Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Yao-Jane Hsu
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Rd., Hsinchu Science Park, Hsinchu, 300092, Taiwan
| | - Chun-Liang Lin
- Department of Electrophysics, National Yang Ming Chiao Tung University, No. 1001 University Rd., Hsinchu, 300039, Taiwan.
| | - Jyh-Pin Chou
- Department of Physics, National Changhua University of Education, No. 1, Jin-De Rd., Changhua, 50007, Taiwan.
| | - Meng-Fan Luo
- Department of Physics, National Central University, No. 300 Jhongda Rd., Jhongli District, Taoyuan City, 320317, Taiwan.
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27
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Shao G, Jing C, Ma Z, Li Y, Dang W, Guo D, Wu M, Liu S, Zhang X, He K, Yuan Y, Luo J, Dai S, Xu J, Zhou Z. Dynamic coordination engineering of 2D PhenPtCl 2 nanosheets for superior hydrogen evolution. Nat Commun 2024; 15:385. [PMID: 38195636 PMCID: PMC10776781 DOI: 10.1038/s41467-024-44717-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/02/2024] [Indexed: 01/11/2024] Open
Abstract
Exploring the dynamic structural evolution of electrocatalysts during reactions represents a fundamental objective in the realm of electrocatalytic mechanism research. In pursuit of this objective, we synthesized PhenPtCl2 nanosheets, revealing a N2-Pt-Cl2 coordination structure through various characterization techniques. Remarkably, the electrocatalytic performance of these PhenPtCl2 nanosheets for hydrogen evolution reaction (HER) surpasses that of the commercial Pt/C catalyst across the entire pH range. Furthermore, our discovery of the dynamic coordination changes occurring in the N2-Pt-Cl2 active sites during the electrocatalytic process, as clarified through in situ Raman and X-ray photoelectron spectroscopy, is particularly noteworthy. These changes transition from Phen-Pt-Cl2 to Phen-Pt-Cl and ultimately to Phen-Pt. The Phen-Pt intermediate plays a pivotal role in the electrocatalytic HER, dynamically coordinating with Cl- ions in the electrolyte. Additionally, the unsaturated, two-coordinated Pt within Phen-Pt provides additional space and electrons to enhance both H+ adsorption and H2 evolution. This research illuminates the intricate dynamic coordination evolution and structural adaptability of PhenPtCl2 nanosheets, firmly establishing them as a promising candidate for efficient and tunable electrocatalysts.
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Affiliation(s)
- Gonglei Shao
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Changfei Jing
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, PR China
- Feringa Nobel Prize Scientist Joint Research Centre, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Zhinan Ma
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, 030051, Shanxi, PR China
| | - Yuanyuan Li
- School of Sciences, Henan University of Technology, Zhengzhou, 450001, PR China
| | - Weiqi Dang
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, PR China
| | - Dong Guo
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Manman Wu
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Song Liu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Xu Zhang
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Kun He
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, PR China
| | - Yifei Yuan
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, PR China
| | - Jun Luo
- ShenSi Lab, Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Longhua District, Shenzhen, 518110, PR China
| | - Sheng Dai
- Feringa Nobel Prize Scientist Joint Research Centre, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Jie Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, PR China.
| | - Zhen Zhou
- Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2), School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China.
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Huang Q, Yang M, Rani KK, Wang L, Wang R, Liu X, Huang D, Yang Z, Devasenathipathy R, Chen DH, Fan Y, Chen W. Sheet-Isolated MoS 2 Used for Dispersing Pt Nanoparticles and its Application in Methanol Fuel Cells. Chemistry 2024; 30:e202302934. [PMID: 37842799 DOI: 10.1002/chem.202302934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
It is highly challenging to activate the basal plane and minimize the π-π stacking of MoS2 sheets, thus enhancing its catalytic performance. Here, we display an approach for making well-dispersed MoS2 . By using the N-doped multi-walled carbon nanotubes (NMWCNTs) as an isolation unit, the aggregation of MoS2 sheets was effectively reduced, favoring the dispersion of Pt nanoparticles (noted as Pt/NMWCNTs-isolated-MoS2 ). Excellent bifunctional catalytic performance for methanol oxidation and oxygen reduction reaction (MOR/ORR) were demonstrated by the produced Pt/NMWCNTs-isolated-MoS2 . In comparison to Pt nanoparticles supported on MoS2 (Pt/MoS2 ), the MOR activity (2314.14 mA mgpt -1 ) and stability (317.69 mA mgpt -1 after 2 h of operation) on Pt/NMWCNTs-isolatedMoS2 were 24 and 232 times higher, respectively. As for ORR, Pt/NMWCNTs-isolated-MoS2 holds large half-wave potential (0.88 V) and high stability (92.71 % after 22 h of operation). This work presents a tactic for activating the basal planes and reducing the π-π stacking of 2D materials to satisfy their applications in electrocatalysis. In addition, the proposed sheet-isolation method can be used for fabricating other 2D materials to promote the dispersion of nanoparticles, which assist its application in other fields of energy as well as the environment.
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Affiliation(s)
- Qiulan Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Mengping Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics (KLOFE) and, Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Limin Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Ruixiang Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Xiaotian Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Dujuan Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Zhongyun Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics (KLOFE) and, Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Du-Hong Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Youjun Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Wei Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
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29
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Jin J, Wang X, Hu Y, Zhang Z, Liu H, Yin J, Xi P. Precisely Control Relationship between Sulfur Vacancy and H Absorption for Boosting Hydrogen Evolution Reaction. NANO-MICRO LETTERS 2024; 16:63. [PMID: 38168843 PMCID: PMC10761665 DOI: 10.1007/s40820-023-01291-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/21/2023] [Indexed: 01/05/2024]
Abstract
Effective and robust catalyst is the core of water splitting to produce hydrogen. Here, we report an anionic etching method to tailor the sulfur vacancy (VS) of NiS2 to further enhance the electrocatalytic performance for hydrogen evolution reaction (HER). With the VS concentration change from 2.4% to 8.5%, the H* adsorption strength on S sites changed and NiS2-VS 5.9% shows the most optimized H* adsorption for HER with an ultralow onset potential (68 mV) and has long-term stability for 100 h in 1 M KOH media. In situ attenuated-total-reflection Fourier transform infrared spectroscopy (ATR-FTIRS) measurements are usually used to monitor the adsorption of intermediates. The S- H* peak of the NiS2-VS 5.9% appears at a very low voltage, which is favorable for the HER in alkaline media. Density functional theory calculations also demonstrate the NiS2-VS 5.9% has the optimal |ΔGH*| of 0.17 eV. This work offers a simple and promising pathway to enhance catalytic activity via precise vacancies strategy.
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Affiliation(s)
- Jing Jin
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Xinyao Wang
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Yang Hu
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Zhuang Zhang
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Hongbo Liu
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Jie Yin
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China.
| | - Pinxian Xi
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China.
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30
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Lu B, Wu X, Xiao X, Chen B, Zeng W, Liu Y, Lao Z, Zeng XX, Zhou G, Yang J. Energy Band Engineering Guided Design of Bidirectional Catalyst for Reversible Li-CO 2 Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308889. [PMID: 37960976 DOI: 10.1002/adma.202308889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/08/2023] [Indexed: 11/15/2023]
Abstract
Li-CO2 batteries arouse great interest in the context of carbon neutralization, but their practicability is severely hindered by the sluggish CO2 redox reaction kinetics at the cathode, which brings about formidable challenges such as high overpotential and low Coulombic efficiency. For the complex multi-electron transfer process, the design of catalysts at the molecular or atomic level and the understanding of the relationship between electron state and performance are essential for the CO2 redox. However, little attention is paid to it. In this work, using Co3 S4 as a model system, density functional theory (DFT) calculations reveal that the adjusted d-band and p-band centers of Co3 S4 with the introduction of Cu and sulfur vacancies are hybridized between CO2 and Li species, respectively, which is conducive to the adsorption of reactants and the decomposition of Li2 CO3 , and the experimental results further verify the effectiveness of energy band engineering. As a result, a highly efficient bidirectional catalyst is produced and shows an ultra-small voltage gap of 0.73 V and marvelous Coulombic efficiency of 92.6%, surpassing those of previous catalysts under similar conditions. This work presents an effective catalyst design and affords new insight into the high-performance cathode catalyst materials for Li-CO2 batteries.
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Affiliation(s)
- Bingyi Lu
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xinru Wu
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xiao Xiao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Biao Chen
- School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
| | - Weihao Zeng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Yingqi Liu
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Zhoujie Lao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xian-Xiang Zeng
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, China
| | - Guangmin Zhou
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Jinlong Yang
- Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
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31
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Rezaei M, Nezamzadeh-Ejhieh A, Massah AR. A comprehensive review on the boosted effects of anion vacancy in the heterogeneous photocatalytic degradation, part I: Focus on sulfur, nitrogen, carbon, and halogen vacancies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115927. [PMID: 38181561 DOI: 10.1016/j.ecoenv.2024.115927] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/07/2023] [Accepted: 01/01/2024] [Indexed: 01/07/2024]
Abstract
The greenest environmental remediation way is the photocatalytic degradation of organic pollutants. However, limited photocatalytic applications are due to poor sunlight absorption and photogenerated charge carriers' recombination. These limitations can be overcome by introducing anion vacancy (AV) (O, S, N, C, and Halogen) defects in semiconductors that enhance light harvesting, facilitate charge separation, modulate electronic structure, and produce reactive radicals. In continuing part A of this review, in this part, we summarized the recent AVs' research, including S, N, C, and halogen vacancies on the boosted photocatalytic features of semiconductor materials, like metal oxides/sulfides, oxyhalides, and nitrides in detail. Also, we outline the recently developed AV designs for the photocatalytic degradation of organic pollutants. The AV creating and analysis methods and the recent photocatalytic applications and mechanisms of AV-mediated photocatalysts are reviewed. AV engineering photocatalysts' challenges and development prospects are illustrated to get a promising research direction.
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Affiliation(s)
- Mahdieh Rezaei
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran
| | - Alireza Nezamzadeh-Ejhieh
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran; Department of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Ahmad Reza Massah
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran; Department of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
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32
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Chakraborty P, Malola S, Weis P, Neumaier M, Schneider EK, Häkkinen H, Kappes MM. Tailoring Vacancy Defects in Isolated Atomically Precise Silver Clusters through Mercury-Doped Intermediates. J Phys Chem Lett 2023; 14:11659-11664. [PMID: 38109267 DOI: 10.1021/acs.jpclett.3c02866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Vacancy defects are known to have significant effects on the physical and chemical properties of nanomaterials. However, the formation and structural dynamics of vacancy defects in atomically precise coinage metal clusters have hardly been explored due to the challenges associated with isolation of such defected clusters. Herein, we isolate [Ag28(BDT)12]2- (BDT is 1,3-benzenedithiol), a cluster with a "missing atom" site compared to [Ag29(BDT)12]3-, whose precise structure is known from X-ray diffraction. [Ag28(BDT)12]2- was formed in the gas-phase by collisional heating of [Ag28Hg(BDT)12]2-, a Hg-doped analogue of the parent cluster. The structural changes resulting from the loss of the Hg heteroatom were investigated by trapped ion mobility mass spectrometry. Density functional theory calculations were performed to provide further insights into the defect structures, and molecular dynamics simulations revealed defect site-dependent structural relaxation processes.
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Affiliation(s)
- Papri Chakraborty
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Sami Malola
- Department of Physics, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Patrick Weis
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Marco Neumaier
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - Erik Karsten Schneider
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Hannu Häkkinen
- Department of Physics, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Manfred M Kappes
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
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33
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Yu H, Hu M, Chen C, Hu C, Li Q, Hu F, Peng S, Ma J. Ambient γ-Rays-Mediated Noble-Metal Deposition on Defect-Rich Manganese Oxide for Glycerol-Assisted H 2 Evolution at Industrial-Level Current Density. Angew Chem Int Ed Engl 2023; 62:e202314569. [PMID: 37942995 DOI: 10.1002/anie.202314569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/22/2023] [Accepted: 11/09/2023] [Indexed: 11/10/2023]
Abstract
Developing novel synthesis technologies is crucial to expanding bifunctional electrocatalysts for energy-saving hydrogen production. Herein, we report an ambient and controllable γ-ray radiation reduction to synthesize a series of noble metal nanoparticles anchored on defect-rich manganese oxides (M@MnO2-x , M=Ru, Pt, Pd, Ir) for glycerol-assisted H2 evolution. Benefiting from the strong penetrability of γ-rays, nanoparticles and defect supports are formed simultaneously and bridged by metal-oxygen bonds, guaranteeing structural stability and active site exposure. The special Ru-O-Mn bonds activate the Ru and Mn sites in Ru@MnO2-x through strong interfacial coordination, driving glycerol electrolysis at low overpotential. Furthermore, only a low cell voltage of 1.68 V is required to achieve 0.5 A cm-2 in a continuous-flow electrolyzer system along with excellent stability. In situ spectroscopic analysis reveals that the strong interfacial coordination in Ru@MnO2-x balances the competitive adsorption of glycerol and OH* on the catalyst surface. Theoretical calculations further demonstrate that the defect-rich MnO2 support promotes the dissociation of H2 O, while the defect-regulated Ru sites promote deprotonation and hydrogen desorption, synergistically enhancing glycerol-assisted hydrogen production.
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Affiliation(s)
- Hanzhi Yu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Mengyu Hu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Chong Chen
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Changjiang Hu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Qiuhao Li
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Feng Hu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Shengjie Peng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
| | - Jun Ma
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, P. R. China
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, 230026, P. R. China
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34
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Xuan X, Huang S, Qin M, Shen J, Wang L, Zhang X, Zhang J, Lu X, Hou Z, Gao X, Zhang Z, Liu J. Defective ReS 2 Triggers High Intrinsic Piezoelectricity for Piezo-Photocatalytic Efficient Sterilization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55753-55764. [PMID: 38009985 DOI: 10.1021/acsami.3c12491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Rhenium disulfide (ReS2) is a promising piezoelectric catalyst due to its excellent electron transfer ability and abundant unsaturated sites. The 1T' phase structure leads to the evolution of ReS2 into a centrosymmetric spatial structure, which restricts its application in piezoelectric catalysis. Herein, we propose a controllable defect engineering strategy to trigger the piezoelectric response of ReS2. The introduction of vacancy defects disrupts the initial centrosymmetric structure, which breaks the piezoelectric polarization bond and generates piezoelectric properties. By using transmission electron microscopy, we characterized it at the atomic scale and determined that vacancy defects contribute to an excellent piezoelectric property through first-principles calculations. Notably, the piezoelectric coefficient of the catalyst with 40 s-etching (ReS2@C-40) is 23.07 pm/V, an order of magnitude greater than other transition metal dichalcogenides. It demonstrated the feasibility of optimizing piezoelectric properties by increasing the conformational asymmetry. Based on its remarkable piezoelectric activity, ReS2@C-40 exhibits highly efficient piezo-photocatalytic synergistic sterilization performance with 99.99% eradication of Escherichia coli and 96.67% of Staphylococcus aureus within 30 min. This pioneering research on the coupling effect of ReS2 in piezoelectric catalysis and photocatalysis provides ideas for the development of piezo-photocatalysts and efficient water purification technologies.
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Affiliation(s)
- Xinmiao Xuan
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Shule Huang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Moran Qin
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Jinfeng Shen
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Lirong Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Xiaoming Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Junwei Zhang
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Xubing Lu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Zhipeng Hou
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Xingsen Gao
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Zhang Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Junming Liu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
- Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210093, China
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35
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Liu X, Li Z, Jiang H, Wang X, Xia P, Duan Z, Ren Y, Xiang H, Li H, Zeng J, Zhou Y, Liu S. Enhanced HER Efficiency of Monolayer MoS 2 via S Vacancies and Nano-Cones Array Induced Strain Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2307293. [PMID: 38047540 DOI: 10.1002/smll.202307293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/31/2023] [Indexed: 12/05/2023]
Abstract
Molybdenum disulfide (MoS2 ) has gained significant attention as a promising catalyst for hydrogen evolution reaction (HER). The catalytic performance of MoS2 can be enhanced by either altering its structure or regulating external conditions. In this study, a novel approach combining the introduction of sulfur vacancy (VS ) and biaxial tensile strain to create more active sites and modulate the band structure of monolayer MoS2 is proposed. To achieve the desired strain level, nano-cones (NCs) array substrates facilely fabricated by dip-pen nanolithography (DPN) are employed. The magnitude of the applied tensile strain can be finely tuned via adjusting the height of the NCs. Furthermore, on-chip electrochemical devices are constructed based on artificial structures, enabling precise optimization of HER performance of MoS2 through the synergistic effect of VS and strain. Combined with the d-band theory, it reveals that the HER properties of VS -MoS2 are highly dependent on the degree of tensile strain. This study presents a promising avenue for the design and preparation of high-performance 2D catalysts for energy conversion and storage applications.
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Affiliation(s)
- Xiao Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Zeqi Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Huili Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Xin Wang
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, 410082, P. R. China
| | - Pufeihong Xia
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Zhuojun Duan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Yizhang Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Haiyan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Huimin Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Jiang Zeng
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, 410082, P. R. China
| | - Yige Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Song Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
- Research Institute of Hunan University in Chongqing, Chongqing, 401151, P. R. China
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Kwon NH, Park J, Jin X, Kim SJ, Kim H, Hwang SJ. Defect-Regulated Two-Dimensional Superlattice of Holey g-C 3N 4-TiO 2 Nanohybrids: Contrasting Influence of Vacancy Content on Hybridization Impact and Photocatalyst Performance. ACS NANO 2023. [PMID: 38039389 DOI: 10.1021/acsnano.3c07566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Defect engineering provides an effective way to explore efficient nanostructured catalysts. Herein, we synthesize defect-regulated two-dimensional superlattices comprising interstratified holey g-C3N4 and TiO2 monolayers with tailorable interfacial coupling. Using this interfacial-coupling-controlled hybrid system, a strong interdependence among vacancy content, performance, and interfacial coupling was elucidated, offering key insights for the design of high-performance catalysts. The defect-optimized g-C3N4-TiO2 superlattice exhibited higher photocatalytic activity toward visible-light-induced N2 fixation (∼1.06 mmol g-1 h-1) than defect-unoptimized and disorderly assembled g-C3N4-TiO2 homologues. The high photocatalytic performance of g-C3N4-TiO2 was attributed to the hybridization-induced defect creation, facilitated hydrogenation of adsorbed nitrogen, and improvement in N2 adsorption and charge transport. A comparison of the defect-dependent photocatalytic activity of g-C3N4, g-C3N4 nanosheets, and g-C3N4-TiO2 revealed the presence of optimal defect content for improving photocatalytic performance and the continuous increase of hybridization impact with the defect content. Sophisticated mutual influence among defect, electronic coupling, and photocatalytic ability underscores the importance of defect fine control in exploring high-performance hybrid photocatalysts. Along with the DFT calculation, the excellent photocatalyst performance of defect-optimized g-C3N4-TiO2 can be ascribed to the promotion of the uphill *N hydrogenation step as well as to enhancement of N2 adsorption, charge transfer kinetics, and mass transports.
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Affiliation(s)
- Nam Hee Kwon
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jihye Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Se-Jun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
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37
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Jia Y, Wen S, Yang F, Diao Y, Zhao Y, Zhang Y, Huang M, Xu M, Duan X, Pu Y, Wang D. In-Depth Investigation of the Mechanism of Dehydration-Induced Phase Transformation from Nb 3O 7(OH) to H-Nb 2O 5: A Theoretical and Experimental Approach. Inorg Chem 2023. [PMID: 38035760 DOI: 10.1021/acs.inorgchem.3c03101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
H-Nb2O5 is a promising energy material, which can be typically obtained from any other polymorph after conducting high temperature calcination (∼1273 K). Recently, a low-temperature dehydration from Nb3O7(OH) was employed to prepare H-Nb2O5 at 723 K for 2 h, and yet the transformation mechanism has remained unclear in the literature. Here, the dehydration kinetic and phase transformation mechanism of the Nb3O7(OH) were investigated for the first time by experiments, density functional theory, and molecular dynamics calculations. After dehydration, the orthorhombic Nb3O7(OH) initially transformed into an intermediate Nb-O compound with dislocations, preserving parent structure, and subsequently transformed into monoclinic H-Nb2O5. The activation energy for the transformation from Nb3O7(OH) to H-Nb2O5 was as low as 1.35 eV, compared to that of T-Nb2O5 to H-Nb2O5 (3.60 eV). Furthermore, the defect-rich H-Nb2O5 obtained from Nb3O7(OH), does not exhibit pristine bound exciton state due to severe recombination of photogenerated carriers, resulting in poor photocatalytic activity.
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Affiliation(s)
- Yongfang Jia
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
- Department of Electromechanical Engineering, Sichuan Engineering Technical College, Deyang, Sichuan 618000, China
| | - Shulong Wen
- College of Communication Engineering (College of Microelectronics), Chengdu University of Information Technology, Chengdu 610225, China
| | - Feng Yang
- Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle (Ministry of Education of China), School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Yangmin Diao
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Yong Zhao
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, College of Physics and Energy, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Yong Zhang
- Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle (Ministry of Education of China), School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Mei Huang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Min Xu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Xuru Duan
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Yuan Pu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dan Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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38
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Li Y, Wan Y, Yao J, Zheng H, Wang X, Liu X, Ouyang B, Huang C, Deng K, Kan E. Enhanced electrocatalytic hydrogen evolution from nitrogen plasma-tailored MoS 2 nanostructures. Phys Chem Chem Phys 2023; 25:31628-31635. [PMID: 37982294 DOI: 10.1039/d3cp04951e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Two-dimensional (2D) layered transition metal dichalcogenides such as MoS2 have been viewed as the most favorable candidates for replacing noble metals in catalyzing the hydrogen evolution reaction in water splitting owing to their earth abundance, superb chemical stability, and appropriate Gibbs free energy. However, due to its low number of catalytic sites and basal catalytic inertia, the pristine MoS2 displayed intrinsically unsatisfactory HER catalytic activity. Here, the hydrogen evolution catalytic activities of nanostructured MoS2 powder before and after plasma modification with nitrogen doping were experimentally compared, and the influence of treatment parameters on the hydrogen evolution catalytic performance of MoS2 has been studied. The feasibility of regulating hydrogen evolution catalytic activity by nitrogen doping of MoS2 was verified based on density functional theory calculations. Our work demonstrates a more convenient and faster way to develop cheap and efficient MoS2-based catalysts for electrochemical hydrogen evolution reactions. Additionally, theoretical studies reveal that N-doped MoS2 exhibits strong hybridization between Mo-d and N-p states, causing magnetism to evolve, as confirmed by experiments.
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Affiliation(s)
- You Li
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yi Wan
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Jiamin Yao
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Hongqian Zheng
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xi Wang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Xuan Liu
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Bo Ouyang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Chengxi Huang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Kaiming Deng
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Erjun Kan
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, and Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
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Yin H, Sun Z, Liu K, Wibowo AA, Langley J, Zhang C, Saji SE, Kremer F, Golberg D, Nguyen HT, Cox N, Yin Z. Defect engineering enhances plasmonic-hot electrons exploitation for CO 2 reduction over polymeric catalysts. NANOSCALE HORIZONS 2023; 8:1695-1699. [PMID: 37698845 DOI: 10.1039/d3nh00348e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Defect sites present on the surface of catalysts serve a crucial role in different catalytic processes. Herein, we have investigated defect engineering within a hybrid system composed of "soft" polymer catalysts and "hard" metal nanoparticles, employing the disparity in their thermal expansions. Electron paramagnetic resonance, X-ray photoelectron spectroscopy, and mechanistic studies together reveal the formation of new abundant defects and their synergistic integrability with plasmonic enhancement within the hybrid catalyst. These active defects, co-localized with plasmonic Ag nanoparticles, promote the utilization efficiency of hot electrons generated by local plasmons, thereby enhancing the CO2 photoreduction activity while maintaining the high catalytic selectivity.
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Affiliation(s)
- Hang Yin
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
- Institute for Climate, Energy & Disaster Solutions, Australian National University, ACT 2601, Australia
| | - Zhehao Sun
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Kaili Liu
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Ary Anggara Wibowo
- School of Engineering, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Julien Langley
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Chao Zhang
- Centre for Materials Science and School of Chemistry and Physics, Faculty of Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia
| | - Sandra E Saji
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Felipe Kremer
- Centre for Advanced Microscopy, Australian National University, Canberra, ACT 2601, Australia
| | - Dmitri Golberg
- Centre for Materials Science and School of Chemistry and Physics, Faculty of Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia
| | - Hieu T Nguyen
- School of Engineering, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Nicholas Cox
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Zongyou Yin
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
- Institute for Climate, Energy & Disaster Solutions, Australian National University, ACT 2601, Australia
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40
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Gu Z, Zhang Y, Wei X, Duan Z, Gong Q, Luo K. Intermediates Regulation via Electron-Deficient Cu Sites for Selective Nitrate-to-Ammonia Electroreduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303107. [PMID: 37730433 DOI: 10.1002/adma.202303107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/23/2023] [Indexed: 09/22/2023]
Abstract
Ammonia (NH3 ), known as one of the fundamental raw materials for manufacturing commodities such as chemical fertilizers, dyes, ammunitions, pharmaceuticals, and textiles, exhibits a high hydrogen storage capacity of ≈17.75%. Electrochemical nitrate reduction (NO3 RR) to valuable ammonia at ambient conditions is a promising strategy to facilitate the artificial nitrogen cycle. Herein, copper-doped cobalt selenide nanosheets with selenium vacancies are reported as a robust and highly efficient electrocatalyst for the reduction of nitrate to ammonia, exhibiting a maximum Faradaic efficiency of ≈93.5% and an ammonia yield rate of 2360 µg h-1 cm-2 at -0.60 V versus reversible hydrogen electrode. The in situ spectroscopical and theoretical study demonstrates that the incorporation of Cu dopants and Se vacancies into cobalt selenide efficiently enhances the electron transfer from Cu to Co atoms via the bridging Se atoms, forming the electron-deficient structure at Cu sites to accelerate NO3 - dissociation and stabilize the *NO2 intermediates, eventually achieving selective catalysis in the entire NO3 RR process to produce ammonia efficiently.
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Affiliation(s)
- Zhengxiang Gu
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yechuan Zhang
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xuelian Wei
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhenyu Duan
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qiyong Gong
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kui Luo
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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41
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Guan Y, Ding Y, Fang Y, Wang G, Zhao S, Wang L, Huang J, Chen M, Hao J, Xu C, Zhen L, Huang F, Li Y, Yang L. Femtosecond Laser-Driven Phase Engineering of WS 2 for Nano-Periodic Phase Patterning and Sub-ppm Ammonia Gas Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303654. [PMID: 37415518 DOI: 10.1002/smll.202303654] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/19/2023] [Indexed: 07/08/2023]
Abstract
Laser-driven phase transition of 2D transition metal dichalcogenides has attracted much attention due to its high flexibility and rapidity. However, there are some limitations during the laser irradiation process, especially the unsatisfied surface ablation, the inability of nanoscale phase patterning, and the unexploited physical properties of new phase. In this work, the well-controlled femtosecond (fs) laser-driven transformation from the metallic 2M-WS2 to the semiconducting 2H-WS2 is reported, which is confirmed to be a single-crystal to single-crystal transition without layer thinning or obvious ablation. Moreover, a highly ordered 2H/2M nano-periodic phase transition with a resolution of ≈435 nm is achieved, breaking through the existing size bottleneck of laser-driven phase transition, which is attributed to the selective deposition of plasmon energy induced by fs laser. It is also demonstrated that the achieved 2H-WS2 after laser irradiation contains rich sulfur vacancies, which exhibits highly competitive ammonia gas sensing performance, with a detection limit below 0.1 ppm and a fast response/recovery time of 43/67 s at room temperature. This study provides a new strategy for the preparation of the phase-selective transition homojunction and high-performance applications in electronics.
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Affiliation(s)
- Yanchao Guan
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Ye Ding
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Yuqiang Fang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences, Shanghai, 200050, China
| | - Genwang Wang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Shouxin Zhao
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Lianfu Wang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Jingtao Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Mengxin Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Juanyuan Hao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Chengyan Xu
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Liang Zhen
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Fuqiang Huang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics Chinese Academy of Sciences, Shanghai, 200050, China
| | - Yang Li
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Lijun Yang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
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42
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Qi Z, Chen J, Li Q, Wang N, Carabineiro SAC, Lv K. Increasing the Photocatalytic Hydrogen Generation Activity of CdS Nanorods by Introducing Interfacial and Polarization Electric Fields. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303318. [PMID: 37475483 DOI: 10.1002/smll.202303318] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/27/2023] [Indexed: 07/22/2023]
Abstract
Cadmium sulfide (CdS) is a photocatalyst widely used for efficient H2 production under visible light irradiation, due to its narrow bandgap and suitable conduction band position. However, the fast recombination of carriers results in their low utilization. In order to improve photocatalytic hydrogen production, it reports the successful introduction of metallic Cd and S vacancies on CdS nanorods (CdS NRs) by a facile in situ chemical reduction method, using a thermal treatment process. This procedure generates interfacial and polarization electric fields, that significantly improve the photocatalytic hydrogen production performance of CdS NRs in sodium sulfide and sodium sulfite aqueous solutions, under visible light irradiation (λ >420 nm). The introduction of these electric fields is believed to improve charge separation and facilitate faster interfacial charge migration, resulting in a significantly optimized catalyst, with a photocatalytic hydrogen evolution rate of up to 10.6 mmol-1 g-1 h-1 with apparent quantum efficiency (AQE) of 12.1% (420 nm), which is 8.5 times higher than that of CdS. This work provides a useful method to introduce metallic and S vacancies on metal sulfide photocatalysts to build local polarization and interfacial electric fields for high-performance photocatalytic H2 production.
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Affiliation(s)
- Zheng Qi
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Jinbao Chen
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Qin Li
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
| | - Ning Wang
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Sónia A C Carabineiro
- Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal
| | - Kangle Lv
- College of Resources and Environment, South-Central Minzu University, Wuhan, 430074, P. R. China
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43
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Aftab U, Solangi MY, Tahira A, Hanan A, Abro MI, Karsy A, Dawi E, Bhatti MA, Alshammari RH, Nafady A, Gradone A, Mazzaro R, Morandi V, Infantes-Molina A, Ibupoto ZH. An advanced PdNPs@MoS 2 nanocomposite for efficient oxygen evolution reaction in alkaline media. RSC Adv 2023; 13:32413-32423. [PMID: 37928849 PMCID: PMC10623383 DOI: 10.1039/d3ra04738e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Abstract
In response to the increasing availability of hydrogen energy and renewable energy sources, molybdenum disulfide (MoS2)-based electrocatalysts are becoming increasingly important for efficient electrochemical water splitting. This study involves the incorporation of palladium nanoparticles (PdNPs) into hydrothermally grown MoS2via a UV light assisted process to afford PdNPs@MoS2 as an alternative electrocatalyst for efficient energy storage and conversion. Various analytical techniques, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and energy dispersive spectroscopy (EDS), were used to investigate the morphology, crystal quality, and chemical composition of the samples. Although PdNPs did not alter the MoS2 morphology, oxygen evolution reaction (OER) activity was driven at considerable overpotential. When electrochemical water splitting was performed in 1.0 M KOH aqueous solution with PdNPs@MoS2 (sample-2), an overpotential of 253 mV was observed. Furthermore, OER performance was highly favorable through rapid reaction kinetics and a low Tafel slope of 59 mV dec-1, as well as high durability and stability. In accordance with the electrochemical results, sample-2 showed also a lower charge transfer resistance, which again provided evidence of OER activity. The enhanced OER activity was attributed to a number of factors, including structural, surface chemical compositions, and synergistic effects between MoS2 and PdNPs.
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Affiliation(s)
- Umair Aftab
- Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology 76080 Jamshoro Pakistan
| | - Muhammad Yameen Solangi
- Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology 76080 Jamshoro Pakistan
| | - Aneela Tahira
- Institute of Chemistry, Shah Abdul Latif University Khairpur Mirs Sindh Pakistan
| | - Abdul Hanan
- Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University 150001 Harbin PR China
| | - Muhammad Ishaq Abro
- Department of Metallurgy and Materials Engineering, Mehran University of Engineering and Technology 76080 Jamshoro Pakistan
| | - Amal Karsy
- Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE) Cairo Egypt
| | - Elmuez Dawi
- Nonlinear Dynamics Research Center (NDRC), Ajman University Ajman P.O. Box 346 United Arab Emirates
| | - Muhammad Ali Bhatti
- Institute of Environmental Sciences, University of Sindh Jamshoro Jamshoro 76080 Sindh Pakistan
| | - Riyadh H Alshammari
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | | | - Raffaello Mazzaro
- CNR IMM Via Piero Gobetti 101 40129 Bologna Italy
- Department of Physics and Astronomy, University of Bologna Via Berti Pichat 6/2 40127 Bologna Italy
| | | | - Antonia Infantes-Molina
- Department of Inorganic Chemistry, Crystallography and Mineralogy, (Unidad Asociada al ICP-CSIC), Faculty of Sciences, University of Malaga Campus de Teatinos 29071 Malaga Spain
| | - Zafar Hussain Ibupoto
- Dr. M. A. Kazi Institute of Chemistry University of Sindh Jamshoro 76080 Sindh Pakistan
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44
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Zhong L, Pi Y, Gao Y, He Y, Wang L, Liu D, Lin L. Building hybrid structure of monolayered S-depleted Mo-S nanocrystals and 3D graphene towards promising aqueous supercapacitor applications. NANOTECHNOLOGY 2023; 35:035401. [PMID: 37827143 DOI: 10.1088/1361-6528/ad02a5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/11/2023] [Indexed: 10/14/2023]
Abstract
Two-dimensional (2D) 1H molybdenum disulfide (1H-MoS2) is hard to be directly used in energy storage devices due to its inert basal plane and unfavorable 2D stacking. This work demonstrated how the basal plane of 1H MoS2nanocrystals (NCs) can be activated to offer doubled specific capacitance by simple surface S depletions. Building on the expanded graphene with three-dimensional (3D) structures, as-prepared NCs were chemically grafted on the graphene surface to deliver stable energy storage and high capacitance, which overcame above challenges of 1H-MoS2. Aside from the mostly focused metastable phase, this work confirmed that the stable 1H Mo-S material is also promising in energy storage applications.
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Affiliation(s)
- Longsheng Zhong
- Hubei Longzhong Laboratory, Hubei University of Arts and Science, Xiangyang 441000, Hubei, People's Republic of China
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, Fujian, People's Republic of China
| | - Yuancheng Pi
- Hubei Longzhong Laboratory, Hubei University of Arts and Science, Xiangyang 441000, Hubei, People's Republic of China
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, Fujian, People's Republic of China
| | - Yu Gao
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, Fujian, People's Republic of China
| | - Yao He
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, Fujian, People's Republic of China
| | - Lijing Wang
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, Fujian, People's Republic of China
| | - Dezheng Liu
- Hubei Longzhong Laboratory, Hubei University of Arts and Science, Xiangyang 441000, Hubei, People's Republic of China
| | - Liangxu Lin
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, Fujian, People's Republic of China
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Ni J, Yang L, Bao J. Electronic and optical structural manipulation of NbS 2 defects under strain: first-principles calculations. J Mol Model 2023; 29:341. [PMID: 37843654 DOI: 10.1007/s00894-023-05739-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
CONTEXT Monolayer NbS2 is a promising new two-dimensional material, and it is critical to develop effective methods to make NbS2 a material for nanodevices and photovoltaic applications. This study studied the strain rule of sulfur-deficient NbS2 structure by first principles. The results show that all defect structures introduce impurity states to enhance electron transport. The disulfide defect structure produces an indirect band gap under the action of tensile strain, which can reach up to 0.56eV and become a diluted semiconductor. The hybrid NbS2 exhibits high transparency under infrared, visible, and low-frequency ultraviolet light, improving the material's transmittance, optical response, and catalytic activity. The research results of this paper will provide a basis for the subsequent research of single-layer NbS2 and accelerate the research process of NbS2 as a new semiconductor material. METHODS We are on the surface perpendicular to the 3×3×1 NbS2 and use a 15 Å vacuum layer to avoid interacting with periodic images. The first-principles simulation uses the CASTEP module in Materials Studio to simulate the hypothetical model and relaxation optimization structure of single-layer NbS2 under strain and defect state. The calculation function is PBE (Perdew-Burke-Ernzerhof) function under the generalized gradient approximation (GGA) for an approximate calculation to describe the interaction between electrons and the interaction between electrons and ions. The pseudopotentials of 3s23p4 and 4d45s1 valence electron configurations were used for S and Nb atoms, respectively. Van der Waals correction is considered in the simulation process. Moreover, it includes spin-orbit coupling (SOC) effects. For the plane wave truncation energy, we set it at 500eV. The arrangement of the Brillouin area is divided by 6×6×1 gamma-centered Monkhorst-Pack grids. The lattice deformation of all hybrid structures is less than 0.05 Gpa, and the interatomic force is less than 0.03 eV/Å.
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Affiliation(s)
- JunJie Ni
- College of Constructional Engineering, Shenyang University of Technology, Shenyang, 110870, China
| | - Lu Yang
- College of Constructional Engineering, Shenyang University of Technology, Shenyang, 110870, China.
| | - Jinlin Bao
- College of Constructional Engineering, Shenyang University of Technology, Shenyang, 110870, China
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Lam NH, Ko JH, Choi BK, Ly TT, Lee G, Jang K, Chang YJ, Soon A, Kim J. Direct characterization of intrinsic defects in monolayer ReSe 2 on graphene. NANOSCALE ADVANCES 2023; 5:5513-5519. [PMID: 37822900 PMCID: PMC10563845 DOI: 10.1039/d3na00363a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/15/2023] [Indexed: 10/13/2023]
Abstract
Understanding the characteristics of intrinsic defects in crystals is of great interest in many fields, from fundamental physics to applied materials science. Combined investigations of scanning tunneling microscopy/spectroscopy (STM/S) and density functional theory (DFT) are conducted to understand the nature of Se vacancy defects in monolayer (ML) ReSe2 grown on a graphene substrate. Among four possible Se vacancy sites, we identify the Se4 vacancy close to the Re layer by registry between STM topography and DFT simulated images. The Se4 vacancy is also thermodynamically favored in formation energy calculations, supporting its common observation via STM. dI/dV spectroscopy shows that the Se4 vacancy has a defect state at around -1.0 V, near the valence band maximum (EVBM). DOS calculations done for all four Se vacancies indicate that only the Se4 vacancy presents such a defect state near EVBM, confirming experimental observations. Our work provides valuable insights into the behavior of ML ReSe2/graphene heterojunctions containing naturally occurring Se vacancies, which may have strong implications in electronic device applications.
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Affiliation(s)
- Nguyen Huu Lam
- Department of Physics, University of Ulsan Ulsan 44610 Republic of Korea
| | - Jae-Hyeok Ko
- Department of Materials Science and Engineering and Center for Artificial Synesthesia Materials Discovery, Yonsei University Seoul 03722 Republic of Korea
| | - Byoung Ki Choi
- Advanced Light Source (ALS), E. O. Lawrence Berkeley National Laboratory Berkeley California 94720 USA
- Department of Physics, University of Seoul Seoul 02504 Republic of Korea
| | - Trinh Thi Ly
- Department of Physics, University of Ulsan Ulsan 44610 Republic of Korea
- Vietnam National University Ho Chi Minh City 700000 Vietnam
- Faculty of Physics and Engineering Physics, University of Science Ho Chi Minh City 700000 Vietnam
| | - Giyeok Lee
- Department of Materials Science and Engineering and Center for Artificial Synesthesia Materials Discovery, Yonsei University Seoul 03722 Republic of Korea
| | - Kyuha Jang
- Radiation Center for Ultrafast Science, Korea Atomic Energy Research Institute Daejeon 34057 Republic of Korea
| | - Young Jun Chang
- Department of Physics, University of Seoul Seoul 02504 Republic of Korea
- Department of Smart Cities, University of Seoul Seoul 02504 Republic of Korea
| | - Aloysius Soon
- Department of Materials Science and Engineering and Center for Artificial Synesthesia Materials Discovery, Yonsei University Seoul 03722 Republic of Korea
| | - Jungdae Kim
- Department of Physics, University of Ulsan Ulsan 44610 Republic of Korea
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Zhao Y, Zheng X, Gao P, Li H. Recent advances in defect-engineered molybdenum sulfides for catalytic applications. MATERIALS HORIZONS 2023; 10:3948-3999. [PMID: 37466487 DOI: 10.1039/d3mh00462g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Electrochemical energy conversion and storage driven by renewable energy sources is drawing ever-increasing interest owing to the needs of sustainable development. Progress in the related electrochemical reactions relies on highly active and cost-effective catalysts to accelerate the sluggish kinetics. A substantial number of catalysts have been exploited recently, thanks to the advances in materials science and engineering. In particular, molybdenum sulfide (MoSx) furnishes a classic platform for studying catalytic mechanisms, improving catalytic performance and developing novel catalytic reactions. Herein, the recent theoretical and experimental progress of defective MoSx for catalytic applications is reviewed. This article begins with a brief description of the structure and basic catalytic applications of MoS2. The employment of defective two-dimensional and non-two-dimensional MoSx catalysts in the hydrogen evolution reaction (HER) is then reviewed, with a focus on the combination of theoretical and experimental tools for the rational design of defects and understanding of the reaction mechanisms. Afterward, the applications of defective MoSx as catalysts for the N2 reduction reaction, the CO2 reduction reaction, metal-sulfur batteries, metal-oxygen/air batteries, and the industrial hydrodesulfurization reaction are discussed, with a special emphasis on the synergy of multiple defects in achieving performance breakthroughs. Finally, the perspectives on the challenges and opportunities of defective MoSx for catalysis are presented.
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Affiliation(s)
- Yunxing Zhao
- School of Materials, Sun Yat-sen University, Guangzhou 510275, China.
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore.
| | - Xiaolin Zheng
- Department of Mechanical Engineering, Stanford University, California 94305, USA.
| | - Pingqi Gao
- School of Materials, Sun Yat-sen University, Guangzhou 510275, China.
| | - Hong Li
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore.
- CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 637553, Singapore
- Centre for Micro-/Nano-electronics (NOVITAS), School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore
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Gong F, Liu Y, Zhao Y, Liu W, Zeng G, Wang G, Zhang Y, Gong L, Liu J. Universal Sub-Nanoreactor Strategy for Synthesis of Yolk-Shell MoS 2 Supported Single Atom Electrocatalysts toward Robust Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2023; 62:e202308091. [PMID: 37340794 DOI: 10.1002/anie.202308091] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 06/22/2023]
Abstract
The coordination structure determines the electrocatalytic performances of single atom catalysts (SACs), while it remains a challenge to precisely regulate their spatial location and coordination environment. Herein, we report a universal sub-nanoreactor strategy for synthesis of yolk-shell MoS2 supported single atom electrocatalysts with dual-anchored microenvironment of vacancy-enriched MoS2 and intercalation carbon toward robust hydrogen-evolution reaction. Theoretical calculations reveal that the "E-Lock" and "E-Channel" are conducive to stabilize and activate metal single atoms. A group of SACs is subsequently produced with the assistance of sulfur vacancy and intercalation carbon in the yolk-shell sub-nanoreactor. The optimized C-Co-MoS2 yields the lowest overpotential (η10 =17 mV) compared with previously reported MoS2 -based electrocatalysts to date, and also affords a 5-9 fold improvement in activity even comparing with those as-prepared single-anchored analogues. Theoretical results and in situ characterizations unveil its active center and durability. This work provides a universal pathway to design efficient catalysts for electro-refinery.
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Affiliation(s)
- Feilong Gong
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yuheng Liu
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yang Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Wei Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Guang Zeng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
| | - Guoqing Wang
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Yonghui Zhang
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Lihua Gong
- Key Laboratory of Surface and Interface Science and Technology of Henan Province, College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, Henan, 450001, P. R. China
| | - Jian Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, P. R. China
- DICP-Surrey Joint Centre for Future Materials, Department of Chemical and Process Engineering and Advanced Technology Institute of University of Surrey, Guildford, Surrey, GU2 7XH, UK
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, P. R. China
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Zhou Z, Zhao L, Wang J, Zhang Y, Li Y, Shoukat S, Han X, Long Y, Liu Y. Optimizing E g Orbital Occupancy of Transition Metal Sulfides by Building Internal Electric Fields to Adjust the Adsorption of Oxygenated Intermediates for Li-O 2 Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302598. [PMID: 37283475 DOI: 10.1002/smll.202302598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/16/2023] [Indexed: 06/08/2023]
Abstract
Li-O2 batteries are acknowledged as one of the most promising energy systems due to their high energy density approaching that of gasoline, but the poor battery efficiency and unstable cycling performance still hinder their practical application. In this work, hierarchical NiS2 -MoS2 heterostructured nanorods are designed and successfully synthesized, and it is found that heterostructure interfaces with internal electric fields between NiS2 and MoS2 optimized eg orbital occupancy, effectively adjusting the adsorption of oxygenated intermediates to accelerate reaction kinetics of oxygen evolution reaction and oxygen reduction reaction. Structure characterizations coupled with density functional theory calculations reveal that highly electronegative Mo atoms on NiS2 -MoS2 catalyst can capture more eg electrons from Ni atoms, and induce lower eg occupancy enabling moderate adsorption strength toward oxygenated intermediates. It is evident that hierarchical NiS2 -MoS2 nanostructure with fancy built-in electric fields significantly boosted formation and decomposition of Li2 O2 during cycling, which contributed to large specific capacities of 16528/16471 mAh g-1 with 99.65% coulombic efficiency and excellent cycling stability of 450 cycles at 1000 mA g-1 . This innovative heterostructure construction provides a reliable strategy to rationally design transition metal sulfides by optimizing eg orbital occupancy and modulating adsorption toward oxygenated intermediates for efficient rechargeable Li-O2 batteries.
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Affiliation(s)
- Zhaorui Zhou
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Lanling Zhao
- School of Physics, Shandong University, Jinan, 250061, China
| | - Jun Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Yiming Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Yebing Li
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Sana Shoukat
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Xue Han
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Yuxin Long
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
| | - Yao Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan, 250061, China
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Hu B, Huang K, Tang B, Lei Z, Wang Z, Guo H, Lian C, Liu Z, Wang L. Graphene Quantum Dot-Mediated Atom-Layer Semiconductor Electrocatalyst for Hydrogen Evolution. NANO-MICRO LETTERS 2023; 15:217. [PMID: 37768413 PMCID: PMC10539274 DOI: 10.1007/s40820-023-01182-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/10/2023] [Indexed: 09/29/2023]
Abstract
The hydrogen evolution reaction performance of semiconducting 2H-phase molybdenum disulfide (2H-MoS2) presents a significant hurdle in realizing its full potential applications. Here, we utilize theoretical calculations to predict possible functionalized graphene quantum dots (GQDs), which can enhance HER activity of bulk MoS2. Subsequently, we design a functionalized GQD-induced in-situ bottom-up strategy to fabricate near atom-layer 2H-MoS2 nanosheets mediated with GQDs (ALQD) by modulating the concentration of electron withdrawing/donating functional groups. Experimental results reveal that the introduction of a series of functionalized GQDs during the synthesis of ALQD plays a crucial role. Notably, the higher the concentration and strength of electron-withdrawing functional groups on GQDs, the thinner and more active the resulting ALQD are. Remarkably, the synthesized near atom-layer ALQD-SO3 demonstrate significantly improved HER performance. Our GQD-induced strategy provides a simple and efficient approach for expanding the catalytic application of MoS2. Furthermore, it holds substantial potential for developing nanosheets in other transition-metal dichalcogenide materials.
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Affiliation(s)
- Bingjie Hu
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai, 200444, People's Republic of China
| | - Kai Huang
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Bijun Tang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Zhendong Lei
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
| | - Zeming Wang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai, 200444, People's Republic of China
| | - Huazhang Guo
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai, 200444, People's Republic of China
| | - Cheng Lian
- State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Zheng Liu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
| | - Liang Wang
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai, 200444, People's Republic of China.
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
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