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Ren B, Huang J, Li P, Xu W, Dong B. Ultrastable monolithic electrodes with single-atom platinum-oxygen sites for efficient hydrogen evolution in acidic conditions. J Colloid Interface Sci 2025; 678:511-519. [PMID: 39214003 DOI: 10.1016/j.jcis.2024.08.198] [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: 05/23/2024] [Revised: 08/21/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
PtNC single-atom catalysts (SACs) single-atom catalysts (SACs) are promising for acidic hydrogen evolution reaction (HER) but suffer from instability at high current densities, limiting their large-scale application. Herein, PtO bonds are constructed to securely anchor atomically dispersed Pt for single-atom (SA) catalysis, utilizing etched vertical graphene (EVG) nanosheets as monolithic supports (Pt-SAs/EVG). Compared to PtNC, the resultant PtO4 coordination demonstrates improved stability while maintaining significant catalytic activity. When applying this catalyst in the acidic HER, a high turnover frequency (34.6 s-1) is achieved at 70 mV, accompanied by exceptional durability exceeding 100 h at -100 mA cm-2. Theoretical analyses indicate that the PtO bonds confer stability to the Pt atoms, facilitating the efficient adsorption of protons and the subsequent desorption of hydrogen. The prepared Pt-SAs/EVG can also be directly employed as the cathode to afford stable operation at 0.5 A cm-2 in a proton exchange membrane electrolyzer cell. This study offers novel insights into enhancing the performance of SACs for industrial applications in electrocatalysis.
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Affiliation(s)
- Bowen Ren
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, China
| | - Jindou Huang
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, China
| | - Ping Li
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, China
| | - Wen Xu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, China
| | - Bin Dong
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, China.
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2
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Li Y, Ma Z, Hou S, Li X, Wang S, Du Z, Chen Y, Zhang Q, Li Y, Yang Q, Huang Z, Bai L, Yu H, Liu Q, Xiang Y, Zhang M, Yu J, Xie J, Zhou Y, Tang C, Sun K, Ding L. Transition metals-based electrocatalysts on super-flat substrate for perovskite photovoltaic hydrogen production with 13.75% solar to hydrogen efficiency. J Colloid Interface Sci 2025; 677:599-609. [PMID: 39111094 DOI: 10.1016/j.jcis.2024.08.005] [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: 04/10/2024] [Revised: 07/11/2024] [Accepted: 08/01/2024] [Indexed: 10/09/2024]
Abstract
Harnessing the inexhaustible solar energy for water splitting is regarded one of the most promising strategies for hydrogen production. However, sluggish kinetics of oxygen evolution reaction (OER) and expensive photovoltaics have hindered commercial viability. Here, an adhesive-free electrodeposition process is developed for in-situ preparation of earth-abundant electrocatalysts on super-flat indium tin oxide (ITO) substrate. NiFe hydroxide exhibited prominent OER performance, achieving an ultra-low overpotential of 236 mV at 10 mA/cm2 in alkaline solution. With the superior OER activity, we achieved an unassisted solar water splitting by series connected perovskite solar cells (PSCs) of 2 cm2 aperture area with NiFe/ITO//Pt electrodes, yielding overall solar to hydrogen (STH) efficiency of 13.75 %. Furthermore, we upscaled the monolithic facility to utilize perovskite solar module for large-scale hydrogen production and maintained an approximate operating current of 20 mA. This creative strategy contributes to the decrease of industrial manufacturing expenses for perovskite-based photovoltaic-electrochemical (PV-EC) hydrogen production, further accelerating the conversion and utilization of carbon-free energy.
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Affiliation(s)
- Yanlin Li
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Zhu Ma
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China.
| | - Shanyue Hou
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Xiaoshan Li
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Shuxiang Wang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Zhuowei Du
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Yi Chen
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Qian Zhang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Yixian Li
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Qiang Yang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Zhangfeng Huang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Lihong Bai
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Hong Yu
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Qianyu Liu
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Yan Xiang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Meng Zhang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Jian Yu
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Jiale Xie
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Ying Zhou
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Chun Tang
- School of New Energy and Materials, Southwest Petroleum University (SWPU), Chengdu 610500, PR China
| | - Kuan Sun
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems (MoE), School of Energy and Power Engineering, Chongqing University, Chongqing 400044, PR China.
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, PR China.
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3
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Kong D, Foley SR, Wilson LD. Cross-linked chitosan as biomacromolecular adsorbents for adsorption of precious metal-chloride complexes from aqueous media. Int J Biol Macromol 2024:138962. [PMID: 39706446 DOI: 10.1016/j.ijbiomac.2024.138962] [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: 07/02/2024] [Revised: 11/25/2024] [Accepted: 12/17/2024] [Indexed: 12/23/2024]
Abstract
Precious metal recovery from secondary sources has received significant attention due to the reduced availability of precious metals from conventional sources. Herein, chitosan (CHT) was modified via cross-linking with glutaraldehyde (glu) to yield CHT-glu adsorbents with improved physicochemical and adsorption properties with precious metal ions (Au(III) and Pd(II)). CHT-glu adsorbents were prepared at variable glu ratios and characterized via complementary spectral (IR, 13C solids NMR, XPS) and thermogravimetry methods. The adsorbents display remarkably enhanced properties relative to CHT upon incremental cross-linking, which includes structural stability in acidic media, greater porosity and surface area with unparalleled adsorption at pH 2. The highest metal-ion uptake capacity for the CHT-glu adsorbent system was 1322 mg/g (Au(III)) and 1337 mg/g (Pd(II)). Electrostatic and chelation interactions govern the adsorption mechanism of gold and palladium species by CHT-glu, as supported by XPS results. The CHT-glu systems display superior solid phase extraction (SPE) properties for the recovery of precious metals from acidic leachate, which is relevant to sustainable metal recovery from tailings or industrial wastewater effluent.
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Affiliation(s)
- Dexu Kong
- Saskatchewan Research Council, 125-15 Innovation Boulevard, Saskatoon S7N 2X8, SK, Canada; Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon S7N 5C9, SK, Canada
| | - Stephen R Foley
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon S7N 5C9, SK, Canada
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon S7N 5C9, SK, Canada.
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4
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Liu Z, Dai Y, Han X, Hou C, Li K, Li Y, Wang H, Zhang Q. CoFe hydroxide towards CoP 2-FeP 4 heterojunction for efficient and long-term stable water oxidation. J Colloid Interface Sci 2024; 676:937-946. [PMID: 39068838 DOI: 10.1016/j.jcis.2024.07.073] [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: 04/14/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/30/2024]
Abstract
Electrochemical water splitting stands out as a promising avenue for green hydrogen production, yet its efficiency is fundamentally governed by the oxygen evolution reaction (OER). In this work, we investigated the growth mechanism of CoFe hydroxide formed by in situ self-corrosion of iron foam for the first time and the significant influence of dissolved oxygen in the immersion solution on this process. Based on this, the CoP2-FeP4/IF heterostructure catalytic electrode demonstrates exceptional OER activity in a 1 M KOH electrolyte, with an overpotential of only 253 ± 4 mV (@10 mA cm-2), along with durability exceeding 1000 h. Density functional theory calculations indicate that constructing heterojunction interfaces promotes the redistribution of interface electrons, optimizing the free energy of adsorbed intermediate during the water oxidation process. This research highlights the importance of integrating self-corroding in-situ growth with interface engineering techniques to develop efficient water splitting materials.
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Affiliation(s)
- Zhi Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yu Dai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xin Han
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chengyi Hou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Kerui Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yaogang Li
- Engineering Research Center of Advanced Glasses Manufacturing Technology, MOE, Donghua University, Shanghai 201620, China
| | - Hongzhi Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Qinghong Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China; Engineering Research Center of Advanced Glasses Manufacturing Technology, MOE, Donghua University, Shanghai 201620, China.
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5
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Lee H, Ding G, Wang L, Sun L. A Chalcogenide-Derived NiFe 2O 4 as Highly Efficient and Stable Anode for Anion Exchange Membrane Water Electrolysis. Chemistry 2024:e202403198. [PMID: 39573942 DOI: 10.1002/chem.202403198] [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: 08/28/2024] [Revised: 11/01/2024] [Indexed: 11/30/2024]
Abstract
Developing low-cost, highly active, and durable oxygen evolution reaction (OER) electrodes is one of the critical scientific issues for anion exchange membrane water electrolyzer (AEM-WE). Herein, we report a vacancy-rich and alkali-stable NiFe2O4-type electrode (named as NiFeOx-350-Ov), derived from the chemical-vapor deposited precursor NiFeSexSy-350, as an efficient and robust anode material. The obtained electrode affords current densities of 100 and 500 mA cm-2 at overpotentials of 245 and 270 mV, respectively, and displays excellent long-term durability sustaining 1.0 A cm-2 at least for 1000 h. When coupled with Ni4Mo/MoO2/NF as a hydrogen evolution reaction (HER) catalyst, the resulting platinum-group metal (PGM)-free single-cell AEM-WE exhibits a cell voltage of 1.71 V at the current density of 1000 mA cm-2 at 80 °C and long-term durability during a current-cycling test between 0.5 A cm-2 and 1.0 A cm-2 over 150 h at 60 °C. This work highlights a unique reconstruction strategy for preparing highly active and durable OER catalysts used in PGM-free AEM-WE.
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Affiliation(s)
- Husileng Lee
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, China
| | - Guoheng Ding
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, China
| | - Linqin Wang
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, China
| | - Licheng Sun
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou, 310024, China
- Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, 310024, China
- Division of Solar Energy Conversion and Catalysis at Westlake University, Zhejiang Baima Lake Laboratory, Hangzhou, 310000, Zhejiang Province, China
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6
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Zhao P, Liu Q, Yang X, Yang S, Chen L, Zhu J, Zhang Q. Ru nanocrystals modified porous FeOOH nanostructures with open 3D interconnected architecture supported on NiFe foam as high-performance electrocatalyst for oxygen evolution reaction and electrocatalytic urea oxidation. J Colloid Interface Sci 2024; 673:49-59. [PMID: 38875797 DOI: 10.1016/j.jcis.2024.06.056] [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: 03/31/2024] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 06/16/2024]
Abstract
The construction of binder-free electrodes with well-defined three-dimensional (3D) morphology and optimized electronic structure represents an efficient strategy for the design of high-performance electrocatalysts for the development of efficient green hydrogen technologies. Herein, Ru nanocrystals were modified on 3D interconnected porous FeOOH nanostructures with open network-like frameworks on NiFe foam (Ru/FeOOH@NFF), which were used as an efficient electrocatalyst. In this study, a 3D interconnected porous FeOOH with an open network structure was first electrodeposited on NiFe foam and served as the support for the in-situ modification of Ru nanocrystals. Subsequently, the Ru nanocrystals and abundant oxygen vacancies were simultaneously incorporated into the FeOOH matrix via the adsorption-reduction method, which involved NaBH4 reduction. The Ru/FeOOH@NFF electrocatalyst shows a large specific surface area, abundant oxygen vacancies, and modulated electronic structure, which collectively result in a significant enhancement of catalytic properties with respect to the oxygen evolution reaction (OER) and urea oxidation reaction (UOR). The Ru/FeOOH@NFF catalyst exhibits an outstanding OER performance, requiring a low overpotential (360 mV) at 200 mA cm-2 with a small Tafel slope (58 mV dec-1). Meanwhile, the Ru/FeOOH@NFF catalyst demonstrates more efficient UOR activity for achieving 200 mA cm-2 at a lower overpotential of 272 mV. Furthermore, an overall urea electrolysis cell using the Ru/FeOOH@NFF as the anode and Pt as the cathode (Ru/FeOOH@NFF||Pt) reveals a cell voltage of 1.478 V at 10 mA cm-2 and a prominent durability (120 h at 50 mA cm-2). This work will provide a valuable understanding of the construction of high-performance electrocatalysts with 3D microstructure for promoting urea-assisted water electrolysis.
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Affiliation(s)
- Peng Zhao
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan 610106, PR China.
| | - Qiancheng Liu
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan 610106, PR China
| | - Xulin Yang
- School of Mechanical Engineering, Chengdu University, Chengdu, Sichuan 610106, PR China; Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, Jianghan University, Wuhan 430056, PR China
| | - Sudong Yang
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, PR China
| | - Lin Chen
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, PR China
| | - Jie Zhu
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, PR China
| | - Qian Zhang
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan 610106, PR China.
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7
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Sathiyan K, Gao C, Wada T, Mukherjee P, Seenivasan K, Taniike T. Structure-Driven Performance Enhancement in Palladium-Graphene Oxide Catalysts for Electrochemical Hydrogen Evolution. MATERIALS (BASEL, SWITZERLAND) 2024; 17:5296. [PMID: 39517580 PMCID: PMC11547229 DOI: 10.3390/ma17215296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2024] [Revised: 10/21/2024] [Accepted: 10/29/2024] [Indexed: 11/16/2024]
Abstract
Graphene oxide (GO) has recently gained significant attention in electrocatalysis as a promising electrode material owing to its unique physiochemical properties such as enhanced electron transfers due to a conjugated π-electron system, high surface area, and stable support for loading electroactive species, including metal nanoparticles. However, only a few studies have been directed toward the structural characteristics of GO, elaborating on the roles of oxygen-containing functional groups, the presence of defects, interlayer spacing between the layered structure, and nonuniformity in the carbon skeleton along with their influence on electrochemical performance. In this work, we aim to understand these properties in various GO materials derived from different graphitic sources. Both physiochemical and electrochemical characterization were employed to correlate the above-mentioned features and explore the effect of the location of the palladium nanoparticles (Pd NPs) on various GO supports for the hydrogen evolution reaction (HER). The interaction of the functional groups has a crucial role in the Pd dispersion and its electrochemical performance. Among the different GO samples, Pd supported on GO derived from graphene nanoplate (GNP), Pd/GO-GNP, exhibits superior HER performance; this could be attributed to the optimal balance among particle size, defect density, less in-plane functionalities, and higher electrochemical surface area. This study, thus, helps to identify the optimal conditions that lead to the best performance of Pd-loaded GO, contributing to the design of more effective HER electrocatalysts.
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Affiliation(s)
- Krishnamoorthy Sathiyan
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan; (C.G.); (T.W.); (P.M.); (K.S.)
| | | | | | | | | | - Toshiaki Taniike
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan; (C.G.); (T.W.); (P.M.); (K.S.)
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8
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Al-Qwairi FO, Shaheen Shah S, Shabi AH, Khan A, Aziz MA. Stainless Steel Mesh in Electrochemistry: Comprehensive Applications and Future Prospects. Chem Asian J 2024; 19:e202400314. [PMID: 39014972 DOI: 10.1002/asia.202400314] [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: 03/22/2024] [Revised: 06/18/2024] [Accepted: 07/16/2024] [Indexed: 07/18/2024]
Abstract
Stainless steel mesh (SSM) has emerged as a cornerstone in electrochemical applications owing to its exemplary versatility, electrical conductivity, mechanical robustness, and corrosion resistance. This state-of-the-art review delves into the diverse roles of SSM across a spectrum of electrochemical domains, including energy conversion and storage devices, water treatment technologies, electrochemical sensors, and catalysis. We meticulously explore its deployment in supercapacitors, batteries, and fuel cells, highlighting its utility as a current collector, electrode, and separator. The review further discusses the critical significance of SSM in water treatment processes, emphasizing its efficacy in supporting membranes and facilitating electrocoagulation, as well as its novel uses in electrochemical sensing and catalysis, which include electrosynthesis and bioelectrochemistry. Each section delineates the recent advancements, identifies the inherent challenges, and suggests future directions for leveraging SSM in electrochemical technologies. This comprehensive review showcases the current state of knowledge and articulates the novel integration of SSM with emerging materials and technologies, thereby establishing a new paradigm for sustainable and efficient electrochemical applications. Through critical analysis and insightful recommendations, this review positions itself as a seminal contribution, paving the way for researchers and practitioners to harness the full potential of SSM in advancing the electrochemistry frontiers.
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Affiliation(s)
- Fatima Omar Al-Qwairi
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, Box, 5040, Dhahran, 31261, Saudi Arabia
| | - Syed Shaheen Shah
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8520, Japan
| | - A H Shabi
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, Box, 5040, Dhahran, 31261, Saudi Arabia
| | - Abuzar Khan
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, Box, 5040, Dhahran, 31261, Saudi Arabia
| | - Md Abdul Aziz
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, Box, 5040, Dhahran, 31261, Saudi Arabia
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9
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Zhang C, Li Z, Zhou B, Li G, Wan C, Fan W, Lu L. Direct Electrolysis of Municipal Reclaimed Water for Efficient Hydrogen Production Using a Bifunctional Non-Noble-Metal Catalyst. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:18202-18212. [PMID: 39351847 DOI: 10.1021/acs.est.4c05395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2024]
Abstract
Water electrolysis for green H2 production traditionally requires a stable supply of renewable electricity and pure water. However, spatial separation of renewables and water resources as well as water scarcity per capita in China necessitate unconventional water resources for electrolysis. Reclaimed water produced from municipal wastewater treatment plants is widely distributed with quality improved significantly in recent years, which may be a promising alternative to feedstock. However, there are few reports on the direct use of this wastewater for H2 production. Here, we present a direct electrolysis of reclaimed water for decentralized H2 production by developing a highly efficient and stable bifunctional 3D-dandelion-like (DL) vanadium(V)-doped CoP catalyst grown in situ on Ni foam (NF) in an alkaline electrolyzer. The V-CoP-DL/NF electrode decreases 6.5 and 25% overpotentials of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively, compared to noble-metal Pt (HER) and IrO2 (OER) catalysts, and exhibits exceptional durability, as a voltage required for overall reclaimed water splitting only increases by 80 mV (1.81-1.89 V) after 90 days of operation at a current density of 10 mA cm-2. The maximum stable current can reach 1000 mA cm-2. The impacts of potential pollutants in reclaimed water on the performance of electrolysis and the behavior of major wastewater ions in alkaline electrolyte were investigated. The observed exceptional performance is attributed to the catalyst's unique nanostructure, which enhances charge transfer and reactant/electrolyte diffusion. The in situ growth strategy further enhances the conductivity and stability of the catalyst. This work underscores the feasibility of utilizing reclaimed water instead of pure water as the feedstock for sustainable hydrogen production.
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Affiliation(s)
- Chunyue Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
| | - Zhida Li
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
| | - Baiqin Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
| | - Guifeng Li
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
| | - Chengfeng Wan
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
| | - Wenqi Fan
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
| | - Lu Lu
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China
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10
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Zhao L, Liang S, Zhang L, Huang H, Zhang QH, Ge W, Wang S, Tan T, Huang L, An Q. Stabilizing and Activating Active Sites: 1T-MoS 2 Supported Pd Single Atoms for Efficient Hydrogen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401537. [PMID: 38822716 DOI: 10.1002/smll.202401537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/07/2024] [Indexed: 06/03/2024]
Abstract
Metallic 1T-MoS2 with high intrinsic electronic conductivity performs Pt-like catalytic activity for hydrogen evolution reaction (HER). However, obtaining pure 1T-MoS2 is challenging due to its high formation energy and metastable properties. Herein, an in situ SO4 2--anchoring strategy is reported to synthesize a thin layer of 1T-MoS2 loaded on commercial carbon. Single Pd atoms, constituting a substantial loading of 7.2 wt%, are then immobilized on the 1T-phase MoS2 via Pd─S bonds to modulate the electronic structure and ensure a stable active phase. The resulting Pd1/1T-MoS2/C catalyst exhibits superior HER performance, featuring a low overpotential of 53 mV at the current density of 10 mA cm-2, a small Tafel slope of 37 mV dec-1, and minimal charge transfer resistance in alkaline electrolyte. Moreover, the catalyst also demonstrates efficacy in acid and neutral electrolytes. Atomic structural characterization and theoretical calculations reveal that the high activity of Pd1/1T-MoS2/C is attributed to the near-zero hydrogen adsorption energy of the activated sulfur sites on the two adjacent shells of atomic Pd.
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Affiliation(s)
- Lu Zhao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Shaojie Liang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Li Zhang
- National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Haoliang Huang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
- Songshan Lake Materials Laboratory, Dongguan, 523808, China
| | - Qing-Hua Zhang
- Beijing National Research Center for Condensed Matter Physics, Collaborative Innovation Center of Quantum Matter, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Weiyi Ge
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Shuqi Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Ting Tan
- National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Linbo Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China
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11
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Adaikalam K, Vikraman D, Karuppasamy K, Kim HS. Solar Hydrogen Production and Storage in Solid Form: Prospects for Materials and Methods. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1560. [PMID: 39404287 PMCID: PMC11477753 DOI: 10.3390/nano14191560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Revised: 09/23/2024] [Accepted: 09/23/2024] [Indexed: 10/19/2024]
Abstract
Climatic changes are reaching alarming levels globally, seriously impacting the environment. To address this environmental crisis and achieve carbon neutrality, transitioning to hydrogen energy is crucial. Hydrogen is a clean energy source that produces no carbon emissions, making it essential in the technological era for meeting energy needs while reducing environmental pollution. Abundant in nature as water and hydrocarbons, hydrogen must be converted into a usable form for practical applications. Various techniques are employed to generate hydrogen from water, with solar hydrogen production-using solar light to split water-standing out as a cost-effective and environmentally friendly approach. However, the widespread adoption of hydrogen energy is challenged by transportation and storage issues, as it requires compressed and liquefied gas storage tanks. Solid hydrogen storage offers a promising solution, providing an effective and low-cost method for storing and releasing hydrogen. Solar hydrogen generation by water splitting is more efficient than other methods, as it uses self-generated power. Similarly, solid storage of hydrogen is also attractive in many ways, including efficiency and cost-effectiveness. This can be achieved through chemical adsorption in materials such as hydrides and other forms. These methods seem to be costly initially, but once the materials and methods are established, they will become more attractive considering rising fuel prices, depletion of fossil fuel resources, and advancements in science and technology. Solid oxide fuel cells (SOFCs) are highly efficient for converting hydrogen into electrical energy, producing clean electricity with no emissions. If proper materials and methods are established for solar hydrogen generation and solid hydrogen storage under ambient conditions, solar light used for hydrogen generation and utilization via solid oxide fuel cells (SOFCs) will be an efficient, safe, and cost-effective technique. With the ongoing development in materials for solar hydrogen generation and solid storage techniques, this method is expected to soon become more feasible and cost-effective. This review comprehensively consolidates research on solar hydrogen generation and solid hydrogen storage, focusing on global standards such as 6.5 wt% gravimetric capacity at temperatures between -40 and 60 °C. It summarizes various materials used for efficient hydrogen generation through water splitting and solid storage, and discusses current challenges in hydrogen generation and storage. This includes material selection, and the structural and chemical modifications needed for optimal performance and potential applications.
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Affiliation(s)
- Kathalingam Adaikalam
- Millimeter-Wave Innovation Technology Research Center, Dongguk University-Seoul, Seoul 04620, Republic of Korea;
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea; (D.V.); (K.K.)
| | - K. Karuppasamy
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea; (D.V.); (K.K.)
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea; (D.V.); (K.K.)
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12
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Mahabari K, Mohili RD, Patel M, Jadhav AH, Lee K, Chaudhari NK. HF-free microwave-assisted synthesis of MXene as an electrocatalyst for hydrogen evolution in alkaline media. NANOSCALE ADVANCES 2024:d4na00250d. [PMID: 39247869 PMCID: PMC11376077 DOI: 10.1039/d4na00250d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 08/16/2024] [Indexed: 09/10/2024]
Abstract
MXenes, characterized by their robustness, flexibility, and large surface-to-volume ratio facilitating efficient energy transfer with fast response times, have emerged as promising electrocatalysts for hydrogen generation through electrochemical water-splitting. However, the conventional synthetic route to MXenes typically involves the use of hydrofluoric acid (HF) to obtain MXenes with terminal F-functional groups. Unfortunately, these fluorine groups can negatively impact the electrocatalytic performance of MXenes. Moreover, HF is highly toxic, necessitating the development of more environmentally friendly synthetic methods. In response to these challenges, we have developed a novel HF-free microwave-assisted synthesis approach for MXenes. This method harnesses the benefits of uniform heating, homogeneous nucleation, and rapid crystal development, resulting in MXene crystallites with limited size. Importantly, our microwave-assisted approach utilizes a fluoride-free, less hazardous etchant as compared to HF for the synthesis and functionalization of MXene. The as-obtained MXene exhibits significantly improved performance towards the electrochemical hydrogen evolution reaction in alkaline media. Specifically, it demonstrates an overpotential of 140 mV at a current density of 10 mA cm-2 and a Tafel slope of 84 mV dec-1. These results highlight the potential of our HF-free microwave-assisted synthesis approach for producing high-quality MXenes with enhanced electrocatalytic activity for hydrogen generation.
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Affiliation(s)
- Kajal Mahabari
- Advanced Hybrid Nanomaterial Laboratory, Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University Gandhinagar 382426 Gujarat India
| | - Ranjit D Mohili
- Advanced Hybrid Nanomaterial Laboratory, Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University Gandhinagar 382426 Gujarat India
| | - Monika Patel
- Advanced Hybrid Nanomaterial Laboratory, Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University Gandhinagar 382426 Gujarat India
| | - Arvind H Jadhav
- Centre for Nano and Material Science (CNMS), Jain University Jain Global Campus Bangalore 562112 Karnataka India
| | - Kwangyeol Lee
- Department of Chemistry, Research Institute for Natural Sciences, Korea University Seoul 02841 Republic of Korea
| | - Nitin K Chaudhari
- Advanced Hybrid Nanomaterial Laboratory, Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University Gandhinagar 382426 Gujarat India
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13
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N Dhandapani H, Das C, Ghosh NN, Biswas G, Ramesh Babu B, Kundu S. Ceria-Graphene Oxide Nanocomposite for Electro-oxidation of Urea: An Experimental and Theoretical Investigation. Inorg Chem 2024; 63:16081-16094. [PMID: 39141009 DOI: 10.1021/acs.inorgchem.4c02747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
This study explores the potential of ceria-graphene oxide (CeO2-GO) nanocomposites as efficient electrocatalysts for urea electro-oxidation (UOR). This work combines experimental and theoretical investigations and characterization techniques confirm the successful formation of the CeO2 embedded on graphene oxide sheets. UOR activity was found to be dependent on both OH- and urea concentrations. The optimal UOR performance was achieved in a 0.1 M urea and 1.0 M KOH solution, as evidenced by the low Tafel slope of 60 mV/dec and high turnover frequency (TOF) of 1.690 s-1. DFT calculations revealed that the CeO2-GO nanocomposite exhibited strong urea adsorption due to its favorable bond lengths (Ce-O: 2.58 Å, O-H: 1.77 Å) and high adsorption energy (-1.05 eV). These findings revealed that the CeO2-GO nanocomposites are promising as efficient and durable electrocatalysts for urea conversion to valuable products like nitrogen and hydrogen gas, with potential applications in clean energy generation and ammonia synthesis.
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Affiliation(s)
- Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Chanchal Das
- Department of Chemistry, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal 736101, India
| | | | - Goutam Biswas
- Department of Chemistry, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal 736101, India
| | - B Ramesh Babu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
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14
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Li N, Chen Y, Wu T, Li X, Zhang S, Chang W, Turkevych V, Wang L. Pore walls as high-way for efficient bulk charge transfer in porous SrTiO 3 single crystals boosting photocatalytic overall water splitting. J Colloid Interface Sci 2024; 668:484-491. [PMID: 38691958 DOI: 10.1016/j.jcis.2024.04.129] [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: 01/14/2024] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 05/03/2024]
Abstract
Suppressing carrier recombination in bulk and facilitating carrier transfer to surface via rational structure design is of great significance to improve solar-to-H2 conversion efficiency. We demonstrate a facile hydrothermal method to synthesize porous SrTiO3 single crystals (SrTiO3-P) with exposed (001) facets by introducing carbon spheres as templates. The obviously increased surface photovoltage and photocurrent response indicate that the interconnected pore walls act as enormous charge transfer "highways", accelerating carrier transport from bulk to surface. Furthermore, the absence of grain boundaries and high crystallinity could also lower the carrier recombination rate. Thus, the SrTiO3-P photocatalyst loaded with Rh/Cr2O3 as cocatalyst exhibits 1.5 times higher overall water splitting activity than that of solid SrTiO3, with gas evolution rate of 19.99 μmol h-1 50 mg-1 for H2 and 11.37 μmol h-1 50 mg-1 for O2. Additionally, SrTiO3-P also shows superior stability without any decay during cycling testing. This work provides a new insight into designing efficient multicomponent photocatalysts with a single-crystal porous structure.
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Affiliation(s)
- Na Li
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yaping Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang 110016, China
| | - Tingting Wu
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Xiaojing Li
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shuting Zhang
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wenjiao Chang
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Volodymyr Turkevych
- V. Bakul Institute for Superhard Materials, National Academy of Sciences of Ukraine, Kyiv 04074, Ukraine
| | - Lei Wang
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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15
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Wu C, Zhou L, Liu H, Wang N, Zhang Y. Rapid Synthesis of Nickel Hydroxide/Pt-Based Alloy Heterointerface for Hydrogen Evolution in Full pH Range. Inorg Chem 2024; 63:14231-14240. [PMID: 39012645 DOI: 10.1021/acs.inorgchem.4c02402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
The huge application potential of nanoelectrocatalysts can become available only under the condition of scalable and reproducible preparation of nanomaterials (NMs). It is easily overlooked that most of the preparation methods for efficient platinum (Pt)-based electrocatalysts are complicated in process and time-/energy-consuming, which is not conducive to scalable and sustainable production. Herein, we propose a rapid and facile method to in situ construct a heterointerface between nickel hydroxide (Ni(OH)2) and NiPt alloy, in which the preparation steps are easy-to-operate and can be finished in 1 h. Furthermore, the ensemble effect between the Ni(OH)2 substrate and NiPt active sites benefits the water dissociation process in nonacidic conditions, while the electronic effect in NiPt contributes to the downshifted d-band center of Pt and the proper Gibbs free energy of hydrogen species. As a result, the well-designed and quickly constructed Ni(OH)2-Ni3Pt heterointerfaces reveal lower overpotentials for HER compared with most reported Pt-based and commercial Pt/C catalysts in nonacidic conditions. This study is expected to provide useful reference information for the development of facile and robust methods for the preparation of more efficient Pt-based electrocatalysts.
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Affiliation(s)
- Chenshuo Wu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Lei Zhou
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Huan Liu
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
| | - Ning Wang
- School of Science, Key Laboratory of High Performance Scientific Computation, Xihua University, Chengdu 610039, China
| | - Yingmeng Zhang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
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16
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Teli AM, Mishra RK, Shin JC, Jeon W. Exploring the Capability of Cu-MoS 2 Catalysts for Use in Electrocatalytic Overall Water Splitting. MICROMACHINES 2024; 15:876. [PMID: 39064387 PMCID: PMC11279013 DOI: 10.3390/mi15070876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/30/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024]
Abstract
Herein, we prepare MoS2 and Cu-MoS2 catalysts using the solvothermal method, a widely accepted technique for electrocatalytic overall water-splitting applications. TEM and SEM images, standard tools in materials science, provide a clear view of the morphology of Cu-MoS2. HRTEM analysis, a high-resolution imaging technique, confirms the lattice spacing, lattice plane, and crystal structure of Cu-MoS2. HAADF and corresponding color mapping and advanced imaging techniques reveal the existence of the Cu-doping, Mo, and S elements in Cu-MoS2. Notably, Cu plays a crucial role in improving the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) of the Cu-MoS2 catalyst as compared with the MoS2 catalyst. In addition, the Cu-MoS2 catalyst demonstrates significantly lower overpotential (167.7 mV and 290 mV) and Tafel slopes (121.5 mV dec-1 and 101.5 mV dec-1), standing at -10 mA cm-2 and 10 mA cm-2 for HER and OER, respectively, compared to the MoS2 catalyst. Additionally, the Cu-MoS2 catalyst displays outstanding stability for 12 h at -10 mA cm-2 of HER and 12 h at 10 mA cm-2 of OER using chronopotentiaometry. Interestingly, the Cu-MoS2‖Cu-MoS2 cell displays a lower cell potential of 1.69 V compared with the MoS2‖MoS2 cell of 1.81 V during overall water splitting. Moreover, the Cu-MoS2‖Cu-MoS2 cell shows excellent stability when using chronopotentiaometry for 18 h at 10 mA cm-2.
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Affiliation(s)
- Aviraj M. Teli
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea; (A.M.T.); (J.C.S.)
| | - Rajneesh Kumar Mishra
- Department of Physics, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea
| | - Jae Cheol Shin
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea; (A.M.T.); (J.C.S.)
| | - Wookhee Jeon
- Department of Semiconductor, Convergence Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi, Republic of Korea
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17
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Galvão RA, Nandy S, Hirako A, Otsuki T, Nakabayashi M, Lu D, Hisatomi T, Domen K. Nanoparticulate TiN Loading to Promote Z-Scheme Water Splitting Using a Narrow-Bandgap Nonoxide-Based Photocatalyst Sheet. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311170. [PMID: 38377301 DOI: 10.1002/smll.202311170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/06/2024] [Indexed: 02/22/2024]
Abstract
Some oxide-based particulate photocatalyst sheets exhibit excellent activity during the water-splitting reaction. The replacement of oxide photocatalysts with narrow-bandgap photocatalysts based on nonoxides could provide the higher solar-to-hydrogen energy conversion efficiencies that are required for practical implementation. Unfortunately, the activity of nonoxide-based photocatalyst sheets is low in many cases, indicating the need for strategies to improve the quality of nonoxide photocatalysts and the charge transfer process. In this work, single-crystalline particulate SrTaO2N is studied as an oxygen evolution photocatalyst for photocatalyst sheets applied to Z-scheme water splitting, in combination with La5Ti2Cu0.9Ag0.1O7S5 and Au as the hydrogen evolution photocatalyst and conductive layer, respectively. The loading of SrTaO2N with CoOx provided increases activity during photocatalytic water oxidation, giving an apparent quantum yield of 15.7% at 420 nm. A photocatalyst sheet incorporating CoOx-loaded SrTaO2N is also found to promote Z-scheme water splitting under visible light. Notably, the additional loading of nanoparticulate TiN on the CoOx-loaded SrTaO2N improves the water splitting activity by six times because the TiN promotes electron transfer from the SrTaO2N particles to the Au layer. This work demonstrates key concepts related to the improvement of nonoxide-based photocatalyst sheets based on facilitating the charge transfer process through appropriate surface modifications.
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Affiliation(s)
- Rhauane Almeida Galvão
- Graduate School of Medicine, Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Swarnava Nandy
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Akio Hirako
- Graduate School of Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Takehiro Otsuki
- Graduate School of Science and Technology, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Mamiko Nakabayashi
- Institute of Engineering Innovation, School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Daling Lu
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Takashi Hisatomi
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
- PRESTO, JST, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
| | - Kazunari Domen
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
- Office of University Professors, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo, 113-8656, Japan
- Department of Chemistry, Kyung Hee University, Seoul, 130-701, Republic of Korea
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18
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Ibarra J, Aguirre MJ, del Río R, Henriquez R, Faccio R, Dalchiele EA, Arce R, Ramírez G. α-Fe 2O 3/, Co 3O 4/, and CoFe 2O 4/MWCNTs/Ionic Liquid Nanocomposites as High-Performance Electrocatalysts for the Electrocatalytic Hydrogen Evolution Reaction in a Neutral Medium. Int J Mol Sci 2024; 25:7043. [PMID: 39000155 PMCID: PMC11240971 DOI: 10.3390/ijms25137043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/21/2024] [Accepted: 06/25/2024] [Indexed: 07/16/2024] Open
Abstract
Transition metal oxides are a great alternative to less expensive hydrogen evolution reaction (HER) catalysts. However, the lack of conductivity of these materials requires a conductor material to support them and improve the activity toward HER. On the other hand, carbon paste electrodes result in a versatile and cheap electrode with good activity and conductivity in electrocatalytic hydrogen production, especially when the carbonaceous material is agglomerated with ionic liquids. In the present work, an electrode composed of multi-walled carbon nanotubes (MWCNTs) and cobalt ferrite oxide (CoFe2O4) was prepared. These compounds were included on an electrode agglomerated with the ionic liquid N-octylpyridinium hexafluorophosphate (IL) to obtain the modified CoFe2O4/MWCNTs/IL nanocomposite electrode. To evaluate the behavior of each metal of the bimetallic oxide, this compound was compared to the behavior of MWCNTs/IL where a single monometallic iron or cobalt oxides were included (i.e., α-Fe2O3/MWCNTs/IL and Co3O4/MWCNTs/IL). The synthesis of the oxides has been characterized by X-ray diffraction (XRD), RAMAN spectroscopy, and field emission scanning electronic microscopy (FE-SEM), corroborating the nanometric character and the structure of the compounds. The CoFe2O4/MWCNTs/IL nanocomposite system presents excellent electrocatalytic activity toward HER with an onset potential of -270 mV vs. RHE, evidencing an increase in activity compared to monometallic oxides and exhibiting onset potentials of -530 mV and -540 mV for α-Fe2O3/MWCNTs/IL and Co3O4/MWCNTs/IL, respectively. Finally, the system studied presents excellent stability during the 5 h of electrolysis, producing 132 μmol cm-2 h-1 of hydrogen gas.
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Affiliation(s)
- José Ibarra
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Casilla 306, Correo 22, Santiago 8331150, Chile; (J.I.); (R.d.R.)
| | - María Jesus Aguirre
- Millennium Institute on Green Ammonia as Energy Vector (MIGA), Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile;
- Departamento Química de los Materiales, Facultad de Química y Biologia, Universidad de Santiago de Chile, Av. B O’Higgins 3363, Estación Central, Santiago 9170022, Chile
| | - Rodrigo del Río
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Casilla 306, Correo 22, Santiago 8331150, Chile; (J.I.); (R.d.R.)
- Millennium Institute on Green Ammonia as Energy Vector (MIGA), Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile;
| | - Rodrigo Henriquez
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2950, Valparaíso 2362807, Chile;
| | - Ricardo Faccio
- Área Física & Centro NanoMat, DETEMA, Facultad de Química, Universidad de la República, Av. Gral. Flores 2124, CC 1157, Montevideo 11800, Uruguay;
| | - Enrique A. Dalchiele
- Instituto de Física, Facultad de Ingeniería, Universidad de la República, Herrera y Reissig 565, C.C. 30, Montevideo 11000, Uruguay;
| | - Roxana Arce
- Millennium Institute on Green Ammonia as Energy Vector (MIGA), Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile;
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andrés Bello, Av. República 275, Santiago 8370146, Chile
| | - Galo Ramírez
- Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Casilla 306, Correo 22, Santiago 8331150, Chile; (J.I.); (R.d.R.)
- Millennium Institute on Green Ammonia as Energy Vector (MIGA), Av. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile;
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19
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Umapathy K, Muthamildevi M, Thiruvengadam D, Vijayarangan M, Rajan K, Jayabharathi J. Greenly Synthesized CoPBA@PANI as a Proficient Electrocatalyst for Oxygen Evolution Reaction and Its Green Sustainability Assessments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13102-13115. [PMID: 38864833 DOI: 10.1021/acs.langmuir.4c01023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Water electrolysis is a key factor to generate mobile and sustainable energy sources for H2 production. Cobalt-based Prussian Blue analogues encompassed with polymer support electrocatalysts CoPBAX@PANI (CoPBA@PANI-100, CoPBA@PANI-200, and CoPBA@PANI-300) have been synthesized and characterized. The well-designed CoPBA@PANI-200/GC shows a low overpotential (η10) of 301 mV with a small Tafel slope (56 mV dec-1), comapred to that of IrO2 (348 mV ; 98 mV dec-1) for OER. The conductivity with stability of CoPBAX@PANI have been increased due to the synergistic effect of CoPBA with PANI. PANI provides additional active sites and shows strong binding with Co ions, and the even distribution of CoPBA overcomes the sluggish kinetics. The turnover frequency (TOF) of CoPBA@PANI-200/GC (0.0212, s-1) was ∼15 times higher than IrO2 (0.0014 s-1) at 1.60 V. Furthermore, CoPBA@PANI-200/NF delivers low overpotential of 274 mV@10 mA cm-2 and exhibits a durability of >250 h with a potential loss of 4.2%. Benefiting from strong electronic interaction between polymer support and evenly distributed CoPBA, CoPBAx@PANI shows higher electrochemical active surface area (ECSA) of 53.08 mF cm-2. The solar-based water electrolysis confirmed the practical use of CoPBA@PANI-200/NF (1.57 V) for eco-benign industrial H2 production. The CoPBA@PANI-200 shows exceptional OER performances as well as favorable kinetics to resolve the sluggish water oxidation. Hence, the cost-effective CoPBA@PANI performances opens a prospective way to boost the efficiency of other cobalt-derived catalysts in renewable energy devices.
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Affiliation(s)
- Krishnan Umapathy
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Murugan Muthamildevi
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Dhanasingh Thiruvengadam
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Murugan Vijayarangan
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Kuppusamy Rajan
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Jayaraman Jayabharathi
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
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20
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Dadvari P, Hung WH, Wang KW. High Entropy Spinel Oxide (AlCrCoNiFe 2)O as Highly Active Oxygen Evolution Reaction Catalysts. ACS OMEGA 2024; 9:27692-27698. [PMID: 38947820 PMCID: PMC11209678 DOI: 10.1021/acsomega.4c03807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/29/2024] [Accepted: 06/05/2024] [Indexed: 07/02/2024]
Abstract
The advancement of water electrolyzer technologies and the production of sustainable hydrogen fuel heavily rely on the development of efficient and cost-effective electrocatalysts for the oxygen evolution reaction (OER). High entropy ceramics, characterized by their unique properties, such as lattice distortion and high configurational entropy, hold significant promise for catalytic applications. In this study, we utilized the sol-gel autocombustion method to synthesize high entropy ceramics containing a combination of 3d transition metals and aluminum ((AlCrCoNiFe2)O). We then compared their electrocatalytic performance with other series of synthesized multimetal and monometallic oxides for the OER under alkaline conditions. Our electrochemical analysis revealed that the high entropy ceramics exhibited excellent performance and the lowest charge transfer resistance, Tafel slope (29 mV·dec-1), and overpotential (η10 = 230 mV). These remarkable results can be primarily attributed to the high entropy effect induced by the addition of Al, Cr, Co, Ni, and Fe, which introduces increased disorder and complexity into the material's structure. This, in turn, facilitates more efficient OER catalysis by providing diverse active sites and promoting optimal electronic configurations for the reaction. Furthermore, the strong electronic interactions among the constituent elements in the metallic spinels further enhance their catalytic activity in the initiation of the OER process. Combined with the reduced charge transfer resistance, these factors collectively play pivotal roles in enhancing the OER performance of the electrocatalysts. Overall, our study provides valuable insights into the design and development of high-performance electrocatalysts for sustainable energy applications. By harnessing the high entropy effect and leveraging strong electronic interactions, electrocatalytic materials can be tailored to improve efficiency and stability, thus advancing the progress of clean energy technologies.
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Affiliation(s)
- Pouria Dadvari
- Institute of Materials Science
and Engineering, National Central University, No. 300 Jhong-da Rd., Jhongli City, Taoyuan County 320, Taiwan
| | - Wei-Hsuan Hung
- Institute of Materials Science
and Engineering, National Central University, No. 300 Jhong-da Rd., Jhongli City, Taoyuan County 320, Taiwan
| | - Kuan-Wen Wang
- Institute of Materials Science
and Engineering, National Central University, No. 300 Jhong-da Rd., Jhongli City, Taoyuan County 320, Taiwan
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21
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Androutsopoulos A, Sader S, Miliordos E. Potential of Molecular Catalysts with Electron-Rich Transition Metal Centers for Addressing Long-Standing Chemistry Enigmas. J Phys Chem A 2024; 128:4401-4411. [PMID: 38797970 DOI: 10.1021/acs.jpca.4c01800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Molecular complexes with electron-rich metal centers are highlighted as potential catalysts for the following five important chemical transformations: selective conversion of methane to methanol, capture and utilization of carbon dioxide, fixation of molecular nitrogen, water splitting, and recycling of perfluorochemicals. Our initial focus lies on negatively charged metal centers and ligands that can stabilize anionic metal atoms. Catalysts with electron-rich metal atoms (CERMAs) can sustain catalytic cycles with a "ping-pong" mechanism, where one or more electrons are transferred from the metal center to the substrate and back. The donated electrons can activate the chemical bonds of the substrate by populating its antibonding orbitals. At the last step of the catalytic cycle, the electrons return to the metal and the product interacts only weakly with the formed anion, which enables the solvent molecules to remove the product fast from the catalytic cycle and prevent subsequent unfavorable reactions. This process resembles electrocatalysis, but the metal serves as both an anode and a cathode (molecular electrocatalysis). We also analyze the usage of CERMAs as the base of Frustrated Lewis pairs proposing a new type of bimetallic catalysts. This Featured Article aspires to initiate systematic experimental and theoretical studies on CERMAs and their reactivity, the potential of which has probably been underestimated in the literature.
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Affiliation(s)
| | - Safaa Sader
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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22
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Boukarkour Y, Reculusa S, Sojic N, Kuhn A, Salinas G. Wireless Light-Emitting Electrode Arrays for the Evaluation of Electrocatalytic Activity. Chemistry 2024; 30:e202400078. [PMID: 38470292 DOI: 10.1002/chem.202400078] [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: 01/08/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/13/2024]
Abstract
Water splitting has become a sustainable and clean alternative for hydrogen production. Commonly, the efficiency of such reactions is intimately related to the physico-chemical properties of the catalysts that constitute the electrolyzer. Thus, the development of simple and fast methods to evaluate the electrocatalytic efficiency of an electrolyzer is highly required. In this work, we present an unconventional method based on the combination of bipolar electrochemistry and light-emitting diodes, which allows the evaluation of the electrocatalytic performance of the two types of catalysts, composing an electrolyzer, namely for oxygen and hydrogen evolution reactions, respectively. The integrated light emission of the diode acts as an optical readout of the electrocatalytic information, which simultaneously depends on the composition of the anode and the cathode. The electrocatalytic activity of Au, Pt, and Ni electrodes, connected to the LED in multiple anode/cathode configurations, towards the water splitting reactions has been evaluated. The efficiency of the electrolyzer can be represented in terms of the onset electric field (ϵonset) for light emission, obtaining variations that are in agreement with data reported with conventional electrochemistry. This work introduces a straightforward method for evaluating electrocatalysts and underscores the importance of material characterization in developing efficient electrolyzers for hydrogen production.
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Affiliation(s)
| | - Stephane Reculusa
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
| | - Neso Sojic
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
| | - Alexander Kuhn
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
| | - Gerardo Salinas
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, 33607, Pessac, France
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23
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He Y, Liu W, Liu J. MOF-based/derived catalysts for electrochemical overall water splitting. J Colloid Interface Sci 2024; 661:409-435. [PMID: 38306750 DOI: 10.1016/j.jcis.2024.01.106] [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: 11/04/2023] [Revised: 01/05/2024] [Accepted: 01/14/2024] [Indexed: 02/04/2024]
Abstract
Water-splitting electrocatalysis has gained increasing attention as a promising strategy for developing renewable energy in recent years, but its high overpotential caused by the unfavorable thermodynamics has limited its widespread implementation. Therefore, there is an urgent need to design catalytic materials with outstanding activity and stability that can overcome the high overpotential and thus improve the electrocatalytic efficiency. Metal-organic frameworks (MOFs) based and/or derived materials are widely used as water-splitting catalysts because of their easily controlled structures, abundant heterointerfaces and increased specific surface area. Herein, some recent research findings on MOFs-based/derived materials are summarized and presented. First, the mechanism and evaluation parameters of electrochemical water splitting are described. Subsequently, advanced modulation strategies for designing MOFs-based/derived catalysts and their catalytic performance toward water splitting are summarized. In particular, the correlation between chemical composition/structural functionalization and catalytic performance is highlighted. Finally, the future outlook and challenges for MOFs materials are also addressed.
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Affiliation(s)
- Yujia He
- College of Materials Science and Engineering, Institute for Graphene Applied, Technology Innovation, Qingdao University, Qingdao 266071, China
| | - Wei Liu
- School of Chemistry & Chemical Engineering, Linyi University, Linyi 276000, Shandong, China.
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied, Technology Innovation, Qingdao University, Qingdao 266071, China; School of Chemistry & Chemical Engineering, Linyi University, Linyi 276000, Shandong, China.
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24
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Zhu Z, Daboczi M, Chen M, Xuan Y, Liu X, Eslava S. Ultrastable halide perovskite CsPbBr 3 photoanodes achieved with electrocatalytic glassy-carbon and boron-doped diamond sheets. Nat Commun 2024; 15:2791. [PMID: 38555394 PMCID: PMC10981704 DOI: 10.1038/s41467-024-47100-2] [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: 10/20/2023] [Accepted: 03/13/2024] [Indexed: 04/02/2024] Open
Abstract
Halide perovskites exhibit exceptional optoelectronic properties for photoelectrochemical production of solar fuels and chemicals but their instability in aqueous electrolytes hampers their application. Here we present ultrastable perovskite CsPbBr3-based photoanodes achieved with both multifunctional glassy carbon and boron-doped diamond sheets coated with Ni nanopyramids and NiFeOOH. These perovskite photoanodes achieve record operational stability in aqueous electrolytes, preserving 95% of their initial photocurrent density for 168 h of continuous operation with the glassy carbon sheets and 97% for 210 h with the boron-doped diamond sheets, due to the excellent mechanical and chemical stability of glassy carbon, boron-doped diamond, and nickel metal. Moreover, these photoanodes reach a low water-oxidation onset potential close to +0.4 VRHE and photocurrent densities close to 8 mA cm-2 at 1.23 VRHE, owing to the high conductivity of glassy carbon and boron-doped diamond and the catalytic activity of NiFeOOH. The applied catalytic, protective sheets employ only earth-abundant elements and straightforward fabrication methods, engineering a solution for the success of halide perovskites in stable photoelectrochemical cells.
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Affiliation(s)
- Zhonghui Zhu
- Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Matyas Daboczi
- Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Minzhi Chen
- Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK
| | - Yimin Xuan
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
| | - Xianglei Liu
- School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Salvador Eslava
- Department of Chemical Engineering and Centre for Processable Electronics, Imperial College London, London, SW7 2AZ, UK.
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25
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Ganguly A, McGlynn RJ, Boies A, Maguire P, Mariotti D, Chakrabarti S. Flexible Bifunctional Electrode for Alkaline Water Splitting with Long-Term Stability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:12339-12352. [PMID: 38425008 PMCID: PMC10941191 DOI: 10.1021/acsami.3c12944] [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: 01/25/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
Progress in electrochemical water-splitting devices as future renewable and clean energy systems requires the development of electrodes composed of efficient and earth-abundant bifunctional electrocatalysts. This study reveals a novel flexible and bifunctional electrode (NiO@CNTR) by hybridizing macroscopically assembled carbon nanotube ribbons (CNTRs) and atmospheric plasma-synthesized NiO quantum dots (QDs) with varied loadings to demonstrate bifunctional electrocatalytic activity for stable and efficient overall water-splitting (OWS) applications. Comparative studies on the effect of different electrolytes, e.g., acid and alkaline, reveal a strong preference for alkaline electrolytes for the developed NiO@CNTR electrode, suggesting its bifunctionality for both HER and OER activities. Our proposed NiO@CNTR electrode demonstrates significantly enhanced overall catalytic performance in a two-electrode alkaline electrolyzer cell configuration by assembling the same electrode materials as both the anode and the cathode, with a remarkable long-standing stability retaining ∼100% of the initial current after a 100 h long OWS run, which is attributed to the "synergistic coupling" between NiO QD catalysts and the CNTR matrix. Interestingly, the developed electrode exhibits a cell potential (E10) of only 1.81 V with significantly low NiO QD loading (83 μg/cm2) compared to other catalyst loading values reported in the literature. This study demonstrates a potential class of carbon-based electrodes with single-metal-based bifunctional catalysts that opens up a cost-effective and large-scale pathway for further development of catalysts and their loading engineering suitable for alkaline-based OWS applications and green hydrogen generation.
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Affiliation(s)
- Abhijit Ganguly
- School
of Engineering, Ulster University, Belfast BT15 1AP, Northern Ireland, U.K.
| | - Ruairi J. McGlynn
- School
of Engineering, Ulster University, Belfast BT15 1AP, Northern Ireland, U.K.
| | - Adam Boies
- Department
of Engineering, University of Cambridge, Cambridge CB2 1PZ, U.K.
| | - Paul Maguire
- School
of Engineering, Ulster University, Belfast BT15 1AP, Northern Ireland, U.K.
| | - Davide Mariotti
- School
of Engineering, Ulster University, Belfast BT15 1AP, Northern Ireland, U.K.
| | - Supriya Chakrabarti
- School
of Engineering, Ulster University, Belfast BT15 1AP, Northern Ireland, U.K.
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26
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Liu Q, Liu K, Huang J, Hui C, Li X, Feng L. A review of modulation strategies for improving the catalytic performance of transition metal sulfide self-supported electrodes for the hydrogen evolution reaction. Dalton Trans 2024; 53:3959-3969. [PMID: 38294259 DOI: 10.1039/d3dt04244h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Electrocatalytic water splitting is considered to be one of the most promising technologies for large-scale sustained production of H2. Developing non-noble metal-based electrocatalytic materials with low cost, high activity and long life is the key to electrolysis of water. Transition metal sulfides (TMSs) with good electrical conductivity and a tunable electronic structure are potential candidates that are expected to replace noble metal electrocatalysts. In addition, self-supported electrodes have fast electron transfer and mass transport, resulting in enhanced kinetics and stability. In this paper, TMS self-supported electrocatalysts are taken as examples and their recent progress as hydrogen evolution reaction (HER) electrocatalysts is reviewed. The HER mechanism is first introduced. Then, based on optimizing the active sites, electrical conductivity, electronic structure and adsorption/dissociation energies of water and intermediates of the electrocatalysts, the article focuses on summarizing five modulation strategies to improve the activity and stability of TMS self-supported electrode electrocatalysts in recent years. Finally, the challenges and opportunities for the future development of TMS self-supported electrodes in the field of electrocatalytic water splitting are presented.
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Affiliation(s)
- Qianqian Liu
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Kehan Liu
- College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jianfeng Huang
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P.R. China.
| | - Chiyuan Hui
- Shaanxi Key Laboratory of Macromolecular Science and Technology, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Xiaoyi Li
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P.R. China.
| | - Liangliang Feng
- School of Materials Science & Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, P.R. China.
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27
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Zaffora A, Megna B, Seminara B, Di Franco F, Santamaria M. Ni,Fe,Co-LDH Coated Porous Transport Layers for Zero-Gap Alkaline Water Electrolyzers. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:407. [PMID: 38470738 DOI: 10.3390/nano14050407] [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: 02/17/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024]
Abstract
Next-generation alkaline water electrolyzers will be based on zero-gap configuration to further reduce costs related to technology and to improve performance. Here, anodic porous transport layers (PTLs) for zero-gap alkaline electrolysis are prepared through a facile one-step electrodeposition of Ni,Fe,Co-based layered double hydroxides (LDH) on 304 stainless steel (SS) meshes. Electrodeposited LDH structures are characterized using Scanning Electron Microscopy (SEM) confirming the formation of high surface area catalytic layers. Finally, bi and trimetallic LDH-based PTLs are tested as electrodes for oxygen evolution reaction (OER) in 1 M KOH solution. The best electrodes are based on FeCo LDH, reaching 10 mA cm-2 with an overpotential value of 300 mV. These PTLs are also tested with a chronopotentiometric measurement carried out for 100 h at 50 mA cm-2, showing outstanding durability without signs of electrocatalytic activity degradation.
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Affiliation(s)
- Andrea Zaffora
- Department of Engineering, Palermo University, 90128 Palermo, Italy
| | - Bartolomeo Megna
- Department of Engineering, Palermo University, 90128 Palermo, Italy
| | - Barbara Seminara
- Department of Engineering, Palermo University, 90128 Palermo, Italy
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28
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Noman M, Khan Z, Jan ST. A comprehensive review on the advancements and challenges in perovskite solar cell technology. RSC Adv 2024; 14:5085-5131. [PMID: 38332783 PMCID: PMC10851055 DOI: 10.1039/d3ra07518d] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
Perovskite solar cells (PSCs) have emerged as revolutionary technology in the field of photovoltaics, offering a promising avenue for efficient and cost-effective solar energy conversion. This review provides a comprehensive overview of the progress and developments in PSCs, beginning with an introduction to their fundamental properties and significance. Herein, we discuss the various types of PSCs, including lead-based, tin-based, mixed Sn-Pb, germanium-based, and polymer-based PSCs, highlighting their unique attributes and performance metrics. Special emphasis is given to halide double PSCs and their potential in enhancing the stability of PSCs. Charge transport layers and their significance in influencing the overall efficiency of solar cells are discussed in detail. The review also explores the role of tandem solar cells as a solution to overcome the limitations of single-junction solar cells, offering an integrated approach to harness a broader spectrum of sunlight. This review concludes with challenges associated with PSCs and perspective on the future potential of PSCs, emphasizing their role in shaping a sustainable energy landscape. Through this review readers will gain a comprehensive insight into the current state-of-the-art in PSC technology and the avenues for future research and development.
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Affiliation(s)
- Muhammad Noman
- U.S. - Pakistan Center for Advanced Studies in Energy, University of Engineering & Technology Peshawar Pakistan
| | - Zeeshan Khan
- U.S. - Pakistan Center for Advanced Studies in Energy, University of Engineering & Technology Peshawar Pakistan
| | - Shayan Tariq Jan
- U.S. - Pakistan Center for Advanced Studies in Energy, University of Engineering & Technology Peshawar Pakistan
- Department of Energy Engineering Technology, University of Technology Nowshera Pakistan
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29
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Lu C, Shi X, Li J, Wang X, Luo S, Zhu W, Wang J. An Fe 3+ induced etching and hydrolysis precipitation strategy affords an Fe-Co hydroxide nanotube array toward hybrid water electrolysis. Dalton Trans 2024; 53:1870-1877. [PMID: 38179618 DOI: 10.1039/d3dt03520d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Developing advanced electrocatalysts toward the oxygen evolution reaction (OER) has always been recognized as the key challenge for green hydrogen production via water electrolysis due to the commonly required high OER overpotential. In this work, we report a branched FeCo-based hydroxide nanotube array (Fe-CoCH NT) synthesized by an ambient Fe-modification strategy, which could be used as a monolithic electrode for efficient OER catalysis. Its OER performance was even comparable to that of RuO2 with a low overpotential of 290 mV to attain a current density of 10 mA cm-2 due to its unique branched nanotube array structure and intrinsic high catalytic activity. Moreover, an acid-base hybrid electrolysis system was built based on this catalyst and an FeCo-based phosphide nanotube array electrode. By collecting electrochemical neutralization energy, this system just needs an ultralow cell voltage of 0.97 V to attain a current density of 10 mA cm-2 with a large decrease in energy consumption of 41.9% compared to traditional alkaline water splitting systems.
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Affiliation(s)
- Chengyi Lu
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
- Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi'an 710072, China
- Unmanned Vehicle Innovation Center, Ningbo Institute of NPU, Ningbo 315105, China
| | - Xiao Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Juchen Li
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
- Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xuefei Wang
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
- Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi'an 710072, China
- Unmanned Vehicle Innovation Center, Ningbo Institute of NPU, Ningbo 315105, China
| | - Silun Luo
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
- Key Laboratory for Unmanned Underwater Vehicle, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wenxin Zhu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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30
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Wu R, Hu Z, Zhang H, Wang J, Qin C, Zhou Y. Bubbles in Porous Electrodes for Alkaline Water Electrolysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:721-733. [PMID: 38147650 DOI: 10.1021/acs.langmuir.3c02925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Porous electrodes with high specific surface areas have been commonly employed for alkaline water electrolysis. The gas bubbles generated in electrodes due to water electrolysis, however, can screen the reaction sites and hinder reactant transport, thereby deteriorating the performance of electrodes. Hence, an in-depth understanding of the behavior of bubbles in porous electrodes is of great importance. Nevertheless, since porous electrodes are opaque, direct observation of bubbles therein is still a challenge. In this work, we have successfully captured the behavior of bubbles in the pores at the side surfaces of nickel-based porous electrodes. Two types of porous electrodes are employed: the ones with straight pores along the gravitational direction and the ones with tortuous pores. In the porous electrodes with tortuous pores, the moving bubbles are prone to collide with the solid matrix, thereby leading to the accumulation of bubbles in the pores and hence bubble trapping. By contrast, in the porous electrodes with straight pores, bubbles are seldom trapped; and when two bubbles near the wall surfaces coalesce, the merged bubble can jump away from the wall surfaces, releasing more active surfaces for reaction. As a result, the porous electrodes with straight pores, although with lower specific surface areas, are superior to those with tortuous pores. The relationship among the pore structures of porous electrodes, bubble behavior, and electrode performance disclosed in this work provides deep insights into the design of porous electrodes.
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Affiliation(s)
- Rui Wu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhihao Hu
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haojing Zhang
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jinqing Wang
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
| | - Chaozhong Qin
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Ye Zhou
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China
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31
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Lin F, Li M, Zeng L, Luo M, Guo S. Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis. Chem Rev 2023; 123:12507-12593. [PMID: 37910391 DOI: 10.1021/acs.chemrev.3c00382] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Electrocatalysis underpins the renewable electrochemical conversions for sustainability, which further replies on metallic nanocrystals as vital electrocatalysts. Intermetallic nanocrystals have been known to show distinct properties compared to their disordered counterparts, and been long explored for functional improvements. Tremendous progresses have been made in the past few years, with notable trend of more precise engineering down to an atomic level and the investigation transferring into more practical membrane electrode assembly (MEA), which motivates this timely review. After addressing the basic thermodynamic and kinetic fundamentals, we discuss classic and latest synthetic strategies that enable not only the formation of intermetallic phase but also the rational control of other catalysis-determinant structural parameters, such as size and morphology. We also demonstrate the emerging intermetallic nanomaterials for potentially further advancement in energy electrocatalysis. Then, we discuss the state-of-the-art characterizations and representative intermetallic electrocatalysts with emphasis on oxygen reduction reaction evaluated in a MEA setup. We summarize this review by laying out existing challenges and offering perspective on future research directions toward practicing intermetallic electrocatalysts for energy conversions.
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Affiliation(s)
- Fangxu Lin
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lingyou Zeng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
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32
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Ritz AJ, Bertini IA, Nguyen ET, Strouse GF, Lazenby RA. Electrocatalytic activity and surface oxide reconstruction of bimetallic iron-cobalt nanocarbide electrocatalysts for the oxygen evolution reaction. RSC Adv 2023; 13:33413-33423. [PMID: 38025854 PMCID: PMC10644102 DOI: 10.1039/d3ra07003d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 11/08/2023] [Indexed: 12/01/2023] Open
Abstract
For renewable energy technology to become ubiquitous, it is imperative to develop efficient oxygen evolution reaction (OER) electrocatalysts, which is challenging due to the kinetically and thermodynamically unfavorable OER mechanism. Transition metal carbides (TMCs) have recently been investigated as desirable OER pre-catalysts, but the ability to tune electrocatalytic performance of bimetallic catalysts and understand their transformation under electrochemical oxidation requires further study. In an effort to understand the tunable TMC material properties for enhancing electrocatalytic activity, we synthesized bimetallic FeCo nanocarbides with a complex mixture of FeCo carbide crystal phases. The synthesized FeCo nanocarbides were tuned by percent proportion Fe (i.e. % Fe), and analysis revealed a non-linear dependence of OER electrocatalytic activity on % Fe, with a minimum overpotential of 0.42 V (15-20% Fe) in alkaline conditions. In an effort to understand the effects of Fe composition on electrocatalytic performance of FeCo nanocarbides, we assessed the structural phase and electronic state of the carbides. Although we did not identify a single activity descriptor for tuning activity for FeCo nanocarbides, we found that surface reconstruction of the carbide surface to oxide during water oxidation plays a pivotal role in defining electrocatalytic activity over time. We observed that a rapid increase of the (FexCo1-x)2O4 phase on the carbide surface correlated with lower electrocatalytic activity (i.e. higher overpotential). We have demonstrated that the electrochemical performance of carbides under harsh alkaline conditions has the potential to be fine-tuned via Fe incorporation and with control, or suppression, of the growth of the oxide phase.
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Affiliation(s)
- Amanda J Ritz
- Department of Chemistry & Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Isabella A Bertini
- Department of Chemistry & Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Edward T Nguyen
- Department of Chemistry & Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Geoffrey F Strouse
- Department of Chemistry & Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Robert A Lazenby
- Department of Chemistry & Biochemistry, Florida State University Tallahassee Florida 32306 USA
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33
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Xu YM, Li K, Jian ZB, Bie J, Wei M, Chen S. Accelerated Discovery of Targeted Environmentally Friendly A(II)B(I)X 3-Type Three-Dimensional Hybrid Organic-Inorganic Perovskites for Potential Light Harvesting via Machine Learning. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37920944 DOI: 10.1021/acsami.3c13439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
The engineered hybrid organic-inorganic perovskites (HOIPs) with outstanding multifunctionalities have realized overarching targeted-driven applications and thus aroused intense research interest. The emergence of three-dimensional (3D) A(II)B(I)X3-type HOIPs in 2018 brought a breakthrough to extend the 3D perovskite family and successfully realized prominent ferroelectricity at the same time. Here, we focus on these new-type HOIPs to perform machine-learning (ML)-based molecular design to screen promising candidates for versatile light harvesting, involving photovoltaics (77 ones), water splitting (216 ones), and photodetection (178 ones), out of 3180 A(II)B(I)X3 perovskites in total. These candidates await future experimental synthesis and characterization. Our high-throughput ML-based screening of 3D A(II)B(I)X3 HOIPs would enrich the material inventory by successfully introducing a class of new 3D HOIPs to realize property-oriented light harvesting and additional versatile energy harvesting due to their potential multifunctionalities such as ferroelectricity and electrocaloricity.
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Affiliation(s)
- Yi-Ming Xu
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Kai Li
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Zhi-Bin Jian
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Jie Bie
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Meng Wei
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Shuang Chen
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
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Suvira M, Ahuja A, Lovre P, Singh M, Draher GW, Zhang B. Imaging Single H 2 Nanobubbles Using Off-Axis Dark-Field Microscopy. Anal Chem 2023; 95:15893-15899. [PMID: 37851536 DOI: 10.1021/acs.analchem.3c02132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
A robust and detailed physicochemical description of electrochemically generated surface nanobubbles and their effects on electrochemical systems remains at large. Herein, we report the development and utilization of an off-axis, dark-field microscopy imaging tool for probing the dynamic process of generating single H2 nanobubbles at the surface of a carbon nanoelectrode. A change in the direction of the incident light is made to significantly reduce the intensity of the background light, which enables us to image both the nanoelectrode and nanobubble on the electrode surface or the metal nanoparticles in the vicinity of the electrode. The correlated electrochemical and optical response provides novel insights regarding bubble nucleation and dissolution on a nanoelectrode previously unattainable solely from its current-voltage response.
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Affiliation(s)
- Milomir Suvira
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Ananya Ahuja
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Pascal Lovre
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Mantak Singh
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Gracious Wyatt Draher
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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35
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Erbe A, Tesch MF, Rüdiger O, Kaiser B, DeBeer S, Rabe M. Operando studies of Mn oxide based electrocatalysts for the oxygen evolution reaction. Phys Chem Chem Phys 2023; 25:26958-26971. [PMID: 37585177 DOI: 10.1039/d3cp02384b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Inspired by photosystem II (PS II), Mn oxide based electrocatalysts have been repeatedly investigated as catalysts for the electrochemical oxygen evolution reaction (OER), the anodic reaction in water electrolysis. However, a comparison of the conditions in biological OER catalysed by the water splitting complex CaMn4Ox with the requirements for an electrocatalyst for industrially relevant applications reveals fundamental differences. Thus, a systematic development of artificial Mn-based OER catalysts requires both a fundamental understanding of the catalytic mechanisms as well as an evaluation of the practicality of the system for industrial scale applications. Experimentally, both aspects can be approached using in situ and operando methods including spectroscopy. This paper highlights some of the major challenges common to different operando investigation methods and recent insights gained with them. To this end, vibrational spectroscopy, especially Raman spectroscopy, absorption techniques in the bandgap region and operando X-ray spectroelectrochemistry (SEC), both in the hard and soft X-ray regime are particularly focused on here. Technical challenges specific to each method are discussed first, followed by challenges that are specific to Mn oxide based systems. Finally, recent in situ and operando studies are reviewed. This analysis shows that despite the technical and Mn specific challenges, three specific key features are common to most of the studied systems with significant OER activity: structural disorder, Mn oxidation states between III and IV, and the appearance of layered birnessite phases in the active regime.
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Affiliation(s)
- Andreas Erbe
- Department of Materials Science and Engineering, NTNU, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Marc Frederic Tesch
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany.
| | - Olaf Rüdiger
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany.
| | - Bernhard Kaiser
- Surface Science Laboratory, Department of Materials- and Earth Sciences, Technical University Darmstadt, Otto-Berndt-Str. 3, 64287 Darmstadt, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany.
| | - Martin Rabe
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Str. 1, 40237 Düsseldorf, Germany.
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36
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TEZCAN F, AHMAD A, KARDAŞ G. Architecture design of TiO2 with Co-doped CdS quantum dots photoelectrode for water splitting. Turk J Chem 2023; 47:1183-1194. [PMID: 38173763 PMCID: PMC10760814 DOI: 10.55730/1300-0527.3604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 10/31/2023] [Accepted: 09/30/2023] [Indexed: 01/05/2024] Open
Abstract
Photoelectrochemical hydrogen production is a critical key to solving the carbon-zero goal of countries due to renewable sources of solar light and combustion products of hydrogen-only water. Here, an architecture design for an n-type nano rosettes-rod TiO2 (RT) surface using CdS and Co-doped CdS quantum dots (QDs) is carried out utilizing the SILAR (simple ionic layer adsorption and reaction) method. Furthermore, the photocatalytic behaviour of Co-doped CdS QDs SILAR cycles deposition is investigated in various cycles, including 5, 8, 10, and 12. The FESEM, Raman XRD, Uv-Vis spectrometer, and vibration modes are used to evaluate the photoelectrode surface structure, crystal structure, and solar light absorption, respectively. FESEM images and XRD pattern revealed successive CdS QDS and Co-doped CdS QDs deposition on the RT boundary and rising SILAR cycles of Co-doped CdS QDs lead to further coverage of RT surface. UV-vis spectrometer indicated shifting solar light absorption to the visible region by applying more SILAR cycles of Co-doped CdS QDs deposition. The electrochemical parameters obtained from EIS showed total polarization resistance (Rp) of the RT electrode dramatically decreased with 10 SILAR cycle Co-doped CdS QDs deposition (5093 Ω cm2 and 617 Ω cm2). Linear sweep voltammetry (LSV) and chronoamperometric photocatalytic performance measurements indicated Co-doped CdS QDs on RT extremely enhanced photoresponse under solar irradiation and 10 SILAR cycle Co-doped CdS QDs improved photocurrent density about fourfold according to blank RT electrode.
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Affiliation(s)
- Fatih TEZCAN
- Department of Chemistry and Chemical Process Technology, Vocational School of Technical Sciences at Mersin Tarsus Organized Industrial Zone, Tarsus University, Mersin,
Turkiye
- Department of Chemistry, Faculty of Arts and Science, Çukurova University, Adana
Turkiye
| | - Abrar AHMAD
- Department of Chemistry, Faculty of Arts and Science, Çukurova University, Adana
Turkiye
- Department of Chemistry, Quaid-i-Azam University, Islamabad,
Pakistan
| | - Gülfeza KARDAŞ
- Department of Chemistry, Faculty of Arts and Science, Çukurova University, Adana
Turkiye
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37
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Zhang X, Yang Y, Liu Y, Jia Z, Wang Q, Sun L, Zhang LC, Kruzic JJ, Lu J, Shen B. Defect Engineering of a High-Entropy Metallic Glass Surface for High-Performance Overall Water Splitting at Ampere-Level Current Densities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303439. [PMID: 37279880 DOI: 10.1002/adma.202303439] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/24/2023] [Indexed: 06/08/2023]
Abstract
Platinum-based electrocatalysts possess high water electrolysis activity and are essential components for hydrogen evolution reaction (HER). A major challenge, however, is how to break the cost-efficiency trade-off. Here, a novel defect engineering strategy is presented to construct a nanoporous (FeCoNiB0.75 )97 Pt3 (atomic %) high-entropy metallic glass (HEMG) with a nanocrystalline surface structure that contains large amounts of lattice distortion and stacking faults to achieve excellent electrocatalytic performance using only 3 at% of Pt. The defect-rich HEMG achieves ultralow overpotentials at ampere-level current density of 1000 mA cm-2 for HER (104 mV) and oxygen evolution reaction (301 mV) under alkaline conditions, while retains a long-term durability exceeding 200 h at 100 mA cm-2 . Moreover, it only requires 81 and 122 mV to drive the current densities of 1000 and 100 mA cm-2 for HER under acidic and neutral conditions, respectively. Modelling results reveal that lattice distortion and stacking fault defects help to optimize atomic configuration and modulate electronic interaction, while the surface nanoporous architecture provides abundant active sites, thus synergistically contributing to the reduced energy barrier for water electrolysis. This defect engineering approach combined with a HEMG design strategy is expected to be widely applicable for development of high-performance alloy catalysts.
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Affiliation(s)
- Xinyue Zhang
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Yiyuan Yang
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Yujing Liu
- Institute of Metals, College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Zhe Jia
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Qianqian Wang
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
| | - Ligang Sun
- School of Science, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Lai-Chang Zhang
- School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA, 6027, Australia
| | - Jamie J Kruzic
- School of Mechanical and Manufacturing Engineering, University of New South Wales (UNSW Sydney), Sydney, NSW, 2052, Australia
| | - Jian Lu
- Hong Kong Branch of National Precious Metals Material Engineering Research Center and Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, SAR, China
| | - Baolong Shen
- School of Materials Science and Engineering, Jiangsu Key Laboratory for Advanced Metallic Materials, Southeast University, Nanjing, 211189, China
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38
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Chen X, Wang XT, Le JB, Li SM, Wang X, Zhang YJ, Radjenovic P, Zhao Y, Wang YH, Lin XM, Dong JC, Li JF. Revealing the role of interfacial water and key intermediates at ruthenium surfaces in the alkaline hydrogen evolution reaction. Nat Commun 2023; 14:5289. [PMID: 37648700 PMCID: PMC10468501 DOI: 10.1038/s41467-023-41030-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023] Open
Abstract
Ruthenium exhibits comparable or even better alkaline hydrogen evolution reaction activity than platinum, however, the mechanistic aspects are yet to be settled, which are elucidated by combining in situ Raman spectroscopy and theoretical calculations herein. We simultaneously capture dynamic spectral evidence of Ru surfaces, interfacial water, *H and *OH intermediates. Ru surfaces exist in different valence states in the reaction potential range, dissociating interfacial water differently and generating two distinct *H, resulting in different activities. The local cation tuning effect of hydrated Na+ ion water and the large work function of high-valence Ru(n+) surfaces promote interfacial water dissociation. Moreover, compared to low-valence Ru(0) surfaces, high-valence Ru(n+) surfaces have more moderate adsorption energies for interfacial water, *H, and *OH. They, therefore, facilitate the activity. Our findings demonstrate the regulation of valence state on interfacial water, intermediates, and finally the catalytic activity, which provide guidelines for the rational design of high-efficiency catalysts.
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Affiliation(s)
- Xing Chen
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xiao-Ting Wang
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Jia-Bo Le
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Shu-Min Li
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xue Wang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yu-Jin Zhang
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Petar Radjenovic
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Yu Zhao
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Yao-Hui Wang
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China
| | - Xiu-Mei Lin
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China.
- Department of Chemistry and Environment Science, Fujian Province University Key Laboratory of Analytical Science, Minnan Normal University, Zhangzhou, 363000, China.
| | - Jin-Chao Dong
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China.
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
| | - Jian-Feng Li
- College of Energy, College of Chemistry and Chemical Engineering, College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Xiamen University, Xiamen, 361005, China.
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China.
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39
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Ravi A, Mulkapuri S, Das SK. Hydroxylated Polyoxometalate with Cu(II)- and Cu(I)-Aqua Complexes: A Bifunctional Catalyst for Electrocatalytic Water Splitting at Neutral pH. Inorg Chem 2023; 62:12650-12663. [PMID: 37233196 DOI: 10.1021/acs.inorgchem.3c00423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A sole inorganic framework material [Li(H2O)4][{CuI(H2O)1.5} {CuII(H2O)3}2{WVI12O36(OH)6}]·N2·H2S·3H2O (1) consisting of a hydroxylated polyoxometalate (POM) anion, {WVI12O36(OH)6}6-, a mixed-valent Cu(II)- and Cu(I)-aqua cationic complex species, [{CuI(H2O)1.5}{CuII(H2O)3}2]5+, a Li(I)-aqua complex cation, and three solvent molecules, has been synthesized and structurally characterized. During its synthesis, the POM cluster anion gets functionalized with six hydroxyl groups, i.e., six WVI-OH groups per cluster unit. Moreover, structural and spectral analyses have shown the presence of H2S and N2 molecules in the concerned crystal lattice, formed from "sulfate-reducing ammonium oxidation (SRAO)". Compound 1 functions as a bifunctional electrocatalyst exhibiting oxygen evolution reaction (OER) by water oxidation and hydrogen evolution reaction (HER) by water reduction at the neutral pH. We could identify that the hydroxylated POM anion and copper-aqua complex cations are the functional sites for HER and OER, respectively. The overpotential, required to achieve a current density of 1 mA/cm2 in the case of HER (water reduction), is found to be 443 mV with a Faradaic efficiency of 84% and a turnover frequency of 4.66 s-1. In the case of OER (water oxidation), the overpotential needed to achieve a current density of 1 mA/cm2 is obtained to be 418 mV with a Faradaic efficiency of 80% and turnover frequency of 2.81 s-1. Diverse electrochemical controlled experiments have been performed to conclude that the title POM-based material functions as a true bifunctional catalyst for electrocatalytic HER as well as OER at the neutral pH without catalyst reconstruction.
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Affiliation(s)
- Athira Ravi
- School of Chemistry, University of Hyderabad, P.O. Central University, Hyderabad 500046, India
| | - Sateesh Mulkapuri
- School of Chemistry, University of Hyderabad, P.O. Central University, Hyderabad 500046, India
| | - Samar K Das
- School of Chemistry, University of Hyderabad, P.O. Central University, Hyderabad 500046, India
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40
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Yu K, Yang H, Zhang H, Huang H, Wang Z, Kang Z, Liu Y, Menezes PW, Chen Z. Immobilization of Oxyanions on the Reconstructed Heterostructure Evolved from a Bimetallic Oxysulfide for the Promotion of Oxygen Evolution Reaction. NANO-MICRO LETTERS 2023; 15:186. [PMID: 37515724 PMCID: PMC10387036 DOI: 10.1007/s40820-023-01164-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/28/2023] [Indexed: 07/31/2023]
Abstract
Efficient and durable oxygen evolution reaction (OER) requires the electrocatalyst to bear abundant active sites, optimized electronic structure as well as robust component and mechanical stability. Herein, a bimetallic lanthanum-nickel oxysulfide with rich oxygen vacancies based on the La2O2S prototype is fabricated as a binder-free precatalyst for alkaline OER. The combination of advanced in situ and ex situ characterizations with theoretical calculation uncovers the synergistic effect among La, Ni, O, and S species during OER, which assures the adsorption and stabilization of the oxyanion [Formula: see text] onto the surface of the deeply reconstructed porous heterostructure composed of confining NiOOH nanodomains by La(OH)3 barrier. Such coupling, confinement, porosity and immobilization enable notable improvement in active site accessibility, phase stability, mass diffusion capability and the intrinsic Gibbs free energy of oxygen-containing intermediates. The optimized electrocatalyst delivers exceptional alkaline OER activity and durability, outperforming most of the Ni-based benchmark OER electrocatalysts.
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Affiliation(s)
- Kai Yu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, People's Republic of China
| | - Hongyuan Yang
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße Des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Hao Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, People's Republic of China
| | - Hui Huang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, People's Republic of China
| | - Zhaowu Wang
- School of Physics and Engineering, Longmen Laboratory, Henan University of Science and Technology, Luoyang, 471023, People's Republic of China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, People's Republic of China.
| | - Yang Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, People's Republic of China
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße Des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany.
- Materials Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany.
| | - Ziliang Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, People's Republic of China.
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße Des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany.
- Materials Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany.
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41
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Chen D, Lu R, Yu R, Zhao H, Wu D, Yao Y, Yu K, Zhu J, Ji P, Pu Z, Kou Z, Yu J, Wu J, Mu S. Tuning Active Metal Atomic Spacing by Filling of Light Atoms and Resulting Reversed Hydrogen Adsorption-Distance Relationship for Efficient Catalysis. NANO-MICRO LETTERS 2023; 15:168. [PMID: 37395826 PMCID: PMC10317938 DOI: 10.1007/s40820-023-01142-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/07/2023] [Indexed: 07/04/2023]
Abstract
Precisely tuning the spacing of the active centers on the atomic scale is of great significance to improve the catalytic activity and deepen the understanding of the catalytic mechanism, but still remains a challenge. Here, we develop a strategy to dilute catalytically active metal interatomic spacing (dM-M) with light atoms and discover the unusual adsorption patterns. For example, by elevating the content of boron as interstitial atoms, the atomic spacing of osmium (dOs-Os) gradually increases from 2.73 to 2.96 Å. More importantly, we find that, with the increase in dOs-Os, the hydrogen adsorption-distance relationship is reversed via downshifting d-band states, which breaks the traditional cognition, thereby optimizing the H adsorption and H2O dissociation on the electrode surface during the catalytic process; this finally leads to a nearly linear increase in hydrogen evolution reaction activity. Namely, the maximum dOs-Os of 2.96 Å presents the optimal HER activity (8 mV @ 10 mA cm-2) in alkaline media as well as suppressed O adsorption and thus promoted stability. It is believed that this novel atomic-level distance modulation strategy of catalytic sites and the reversed hydrogen adsorption-distance relationship can shew new insights for optimal design of highly efficient catalysts.
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Affiliation(s)
- Ding Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Ruihu Lu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Ruohan Yu
- NRC (Nanostructure Research Centre), Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Hongyu Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Dulan Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Youtao Yao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Kesong Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Jiawei Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Pengxia Ji
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Zonghua Pu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Zongkui Kou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Jun Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Jinsong Wu
- NRC (Nanostructure Research Centre), Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, People's Republic of China.
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Ning M, Wang Y, Wu L, Yang L, Chen Z, Song S, Yao Y, Bao J, Chen S, Ren Z. Hierarchical Interconnected NiMoN with Large Specific Surface Area and High Mechanical Strength for Efficient and Stable Alkaline Water/Seawater Hydrogen Evolution. NANO-MICRO LETTERS 2023; 15:157. [PMID: 37336833 PMCID: PMC10279610 DOI: 10.1007/s40820-023-01129-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/13/2023] [Indexed: 06/21/2023]
Abstract
NiMo-based nanostructures are among the most active hydrogen evolution reaction (HER) catalysts under an alkaline environment due to their strong water dissociation ability. However, these nanostructures are vulnerable to the destructive effects of H2 production, especially at industry-standard current densities. Therefore, developing a strategy to improve their mechanical strength while maintaining or even further increasing the activity of these nanocatalysts is of great interest to both the research and industrial communities. Here, a hierarchical interconnected NiMoN (HW-NiMoN-2h) with a nanorod-nanowire morphology was synthesized based on a rational combination of hydrothermal and water bath processes. HW-NiMoN-2h is found to exhibit excellent HER activity due to the accomodation of abundant active sites on its hierarchical morphology, in which nanowires connect free-standing nanorods, concurrently strengthening its structural stability to withstand H2 production at 1 A cm-2. Seawater is an attractive feedstock for water electrolysis since H2 generation and water desalination can be addressed simultaneously in a single process. The HER performance of HW-NiMoN-2h in alkaline seawater suggests that the presence of Na+ ions interferes with the reation kinetics, thus lowering its activity slightly. However, benefiting from its hierarchical and interconnected characteristics, HW-NiMoN-2h is found to deliver outstanding HER activity of 1 A cm-2 at 130 mV overpotential and to exhibit excellent stability at 1 A cm-2 over 70 h in 1 M KOH seawater.
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Affiliation(s)
- Minghui Ning
- Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston, Houston, TX, 77204, USA
| | - Yu Wang
- Cullen College of Engineering and TcSUH, University of Houston, Houston, TX, 77204, USA
| | - Libo Wu
- Cullen College of Engineering and TcSUH, University of Houston, Houston, TX, 77204, USA
| | - Lun Yang
- School of Materials Science and Engineering, Hubei Normal University, Huangshi, 435002, Hubei, People's Republic of China
| | - Zhaoyang Chen
- Department of Electrical and Computer Engineering and TcSUH, University of Houston, Houston, TX, 77204, USA
| | - Shaowei Song
- Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston, Houston, TX, 77204, USA
| | - Yan Yao
- Department of Electrical and Computer Engineering and TcSUH, University of Houston, Houston, TX, 77204, USA
| | - Jiming Bao
- Department of Electrical and Computer Engineering and TcSUH, University of Houston, Houston, TX, 77204, USA
| | - Shuo Chen
- Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston, Houston, TX, 77204, USA.
| | - Zhifeng Ren
- Department of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of Houston, Houston, TX, 77204, USA.
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43
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Kim H, Seo JW, Chung W, Narejo GM, Koo SW, Han JS, Yang J, Kim JY, In SI. Thermal Effect on Photoelectrochemical Water Splitting Toward Highly Solar to Hydrogen Efficiency. CHEMSUSCHEM 2023; 16:e202202017. [PMID: 36840941 DOI: 10.1002/cssc.202202017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/07/2023] [Indexed: 06/10/2023]
Abstract
Photoelectrochemical (PEC) hydrogen production is an emerging technology that uses renewable solar light aimed to establish a sustainable carbon-neutral society. The barriers to commercialization are low efficiency and high cost. To date, researchers have focused on materials and systems. However, recent studies have been conducted to utilize thermal effects in PEC hydrogen production. This Review provides a fresh perspective to utilize the thermal effects for PEC performance enhancement while delineating the underlying principles and equations associated with efficiency. The fundamentals of the thermal effect on the PEC system are summarized from various perspectives: kinetics, thermodynamics, and empirical equations. Based on this, materials are classified as plasmonic metals, quantum dot-based semiconductors, and photothermal organic materials, which have an inherent response to photothermal irradiation. Finally, the economic viability and challenges of these strategies for PEC are explained, which can pave the way for the future progress in the field.
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Affiliation(s)
- Hwapyong Kim
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
| | - Joo Won Seo
- Department of Chemical Engineering, Dankook University (DKU), Yongin-si, 16890 (Republic of, Korea
| | - Wookjin Chung
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
| | - Ghulam Mustafa Narejo
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
| | - Sung Wook Koo
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
| | - Ji Su Han
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
| | - Jiwoong Yang
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
| | - Jae-Yup Kim
- Department of Chemical Engineering, Dankook University (DKU), Yongin-si, 16890 (Republic of, Korea
| | - Su-Il In
- Department of Energy Science & Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, 42988 (Republic of, Korea
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44
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Ding L, Xie Z, Yu S, Wang W, Terekhov AY, Canfield BK, Capuano CB, Keane A, Ayers K, Cullen DA, Zhang FY. Electrochemically Grown Ultrathin Platinum Nanosheet Electrodes with Ultralow Loadings for Energy-Saving and Industrial-Level Hydrogen Evolution. NANO-MICRO LETTERS 2023; 15:144. [PMID: 37269447 PMCID: PMC10239421 DOI: 10.1007/s40820-023-01117-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/26/2023] [Indexed: 06/05/2023]
Abstract
Nanostructured catalyst-integrated electrodes with remarkably reduced catalyst loadings, high catalyst utilization and facile fabrication are urgently needed to enable cost-effective, green hydrogen production via proton exchange membrane electrolyzer cells (PEMECs). Herein, benefitting from a thin seeding layer, bottom-up grown ultrathin Pt nanosheets (Pt-NSs) were first deposited on thin Ti substrates for PEMECs via a fast, template- and surfactant-free electrochemical growth process at room temperature, showing highly uniform Pt surface coverage with ultralow loadings and vertically well-aligned nanosheet morphologies. Combined with an anode-only Nafion 117 catalyst-coated membrane (CCM), the Pt-NS electrode with an ultralow loading of 0.015 mgPt cm-2 demonstrates superior cell performance to the commercial CCM (3.0 mgPt cm-2), achieving 99.5% catalyst savings and more than 237-fold higher catalyst utilization. The remarkable performance with high catalyst utilization is mainly due to the vertically well-aligned ultrathin nanosheets with good surface coverage exposing abundant active sites for the electrochemical reaction. Overall, this study not only paves a new way for optimizing the catalyst uniformity and surface coverage with ultralow loadings but also provides new insights into nanostructured electrode design and facile fabrication for highly efficient and low-cost PEMECs and other energy storage/conversion devices.
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Affiliation(s)
- Lei Ding
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Zhiqiang Xie
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Shule Yu
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Weitian Wang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Alexander Y Terekhov
- Center for Laser Applications, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Brian K Canfield
- Center for Laser Applications, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | | | - Alex Keane
- Nel Hydrogen, Wallingford, CT, 06492, USA
| | | | - David A Cullen
- Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge, TN, 37831, USA
| | - Feng-Yuan Zhang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA.
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45
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Teng CP, Tan MY, Toh JPW, Lim QF, Wang X, Ponsford D, Lin EMJ, Thitsartarn W, Tee SY. Advances in Cellulose-Based Composites for Energy Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103856. [PMID: 37241483 DOI: 10.3390/ma16103856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023]
Abstract
The various forms of cellulose-based materials possess high mechanical and thermal stabilities, as well as three-dimensional open network structures with high aspect ratios capable of incorporating other materials to produce composites for a wide range of applications. Being the most prevalent natural biopolymer on the Earth, cellulose has been used as a renewable replacement for many plastic and metal substrates, in order to diminish pollutant residues in the environment. As a result, the design and development of green technological applications of cellulose and its derivatives has become a key principle of ecological sustainability. Recently, cellulose-based mesoporous structures, flexible thin films, fibers, and three-dimensional networks have been developed for use as substrates in which conductive materials can be loaded for a wide range of energy conversion and energy conservation applications. The present article provides an overview of the recent advancements in the preparation of cellulose-based composites synthesized by combining metal/semiconductor nanoparticles, organic polymers, and metal-organic frameworks with cellulose. To begin, a brief review of cellulosic materials is given, with emphasis on their properties and processing methods. Further sections focus on the integration of cellulose-based flexible substrates or three-dimensional structures into energy conversion devices, such as photovoltaic solar cells, triboelectric generators, piezoelectric generators, thermoelectric generators, as well as sensors. The review also highlights the uses of cellulose-based composites in the separators, electrolytes, binders, and electrodes of energy conservation devices such as lithium-ion batteries. Moreover, the use of cellulose-based electrodes in water splitting for hydrogen generation is discussed. In the final section, we propose the underlying challenges and outlook for the field of cellulose-based composite materials.
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Affiliation(s)
- Choon Peng Teng
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Ming Yan Tan
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Jessica Pei Wen Toh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Qi Feng Lim
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Xiaobai Wang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Daniel Ponsford
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
- Department of Chemistry, University College London, London WC1H 0AJ, UK
- Institute for Materials Discovery, University College London, London WC1E 7JE, UK
| | - Esther Marie JieRong Lin
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Warintorn Thitsartarn
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
| | - Si Yin Tee
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Singapore
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46
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Morales-García Á, Viñes F, Sousa C, Illas F. Toward a Rigorous Theoretical Description of Photocatalysis Using Realistic Models. J Phys Chem Lett 2023; 14:3712-3720. [PMID: 37042213 PMCID: PMC10123813 DOI: 10.1021/acs.jpclett.3c00359] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
This Perspective aims at providing a road map to computational heterogeneous photocatalysis highlighting the knowledge needed to boost the design of efficient photocatalysts. A plausible computational framework is suggested focusing on static and dynamic properties of the relevant excited states as well of the involved chemistry for the reactions of interest. This road map calls for explicitly exploring the nature of the charge carriers, the excited-state potential energy surface, and its time evolution. Excited-state descriptors are introduced to locate and characterize the electrons and holes generated upon excitation. Nonadiabatic molecular dynamics simulations are proposed as a convenient tool to describe the time evolution of the photogenerated species and their propagation through the crystalline structure of photoactive material, ultimately providing information about the charge carrier lifetime. Finally, it is claimed that a detailed understanding of the mechanisms of heterogeneously photocatalyzed reactions demands the analysis of the excited-state potential energy surface.
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47
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Liu G, Cheng Y, Qiu M, Li C, Bao A, Sun Z, Yang C, Liu D. Facilitating interface charge transfer via constructing NiO/NiCo 2O 4 heterostructure for oxygen evolution reaction under alkaline conditions. J Colloid Interface Sci 2023; 643:214-222. [PMID: 37058896 DOI: 10.1016/j.jcis.2023.04.026] [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: 01/04/2023] [Revised: 04/01/2023] [Accepted: 04/05/2023] [Indexed: 04/16/2023]
Abstract
Designing high-activity electrocatalysts to enhance the slow multielectron-transfer process of the oxygen evolution reaction (OER) is of great importance for hydrogen generation. Here, we employ hydrothermal and subsequent heat-treatment strategies to acquire nanoarrays-structured NiO/NiCo2O4 heterojunction anchored Ni foam (NiO/NiCo2O4/NF) as efficient materials for catalyzing the OER in an alkaline electrolyte. Density functional theory (DFT) results demonstrate that NiO/NiCo2O4/NF exhibits a smaller overpotential than those of single NiO/NF and NiCo2O4/NF owing to interface-triggered numerous interface charge transfer. Moreover, the superior metallic characteristics of NiO/NiCo2O4/NF further enhance its electrochemical activity toward OER. Specifically, NiO/NiCo2O4/NF delivered a current density of 50 mA cm-2 at an overpotential of 336 mV with a Tafel slope of 93.2 mV dec-1 for the OER, which are comparable with those of commercial RuO2 (310 mV and 68.8 mV dec-1). Further, an overall water splitting system is preliminarily constructed via using a Pt net as cathode and NiO/NiCo2O4/NF as anode. The water electrolysis cell performs an operating voltage of 1.670 V at 20 mA cm-2, which outperform the Pt net||IrO2 couple assembled two-electrode electrolyzer (1.725 V at 20 mA cm-2). This study proposes an efficient route to acquire multicomponent catalysts with rich interfaces for water electrolysis.
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Affiliation(s)
- Guoqiang Liu
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, PR China.
| | - Yuwen Cheng
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Maoqin Qiu
- College of Electromechanical Engineering, Hefei Technology College, Hefei, Anhui 238000, PR China
| | - Chengcheng Li
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Anyang Bao
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Zhongti Sun
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Cuizhen Yang
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, PR China
| | - Dongming Liu
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, PR China.
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Kim M, Kim Y, Ha MY, Shin E, Kwak SJ, Park M, Kim ID, Jung WB, Lee WB, Kim Y, Jung HT. Exploring Optimal Water Splitting Bifunctional Alloy Catalyst by Pareto Active Learning. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211497. [PMID: 36762586 DOI: 10.1002/adma.202211497] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/03/2023] [Indexed: 05/17/2023]
Abstract
Design of bifunctional multimetallic alloy catalysts, which are one of the most promising candidates for water splitting, is a significant issue for the efficient production of renewable energy. Owing to large dimensions of the components and composition of multimetallic alloys, as well as the trade-off behavior in terms of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) overpotentials for bifunctional catalysts, it is difficult to search for high-performance bifunctional catalysts with multimetallic alloys using conventional trial-and-error experiments. Here, an optimal bifunctional catalyst for water splitting is obtained by combining Pareto active learning and experiments, where 110 experimental data points out of 77946 possible points lead to effective model development. The as-obtained bifunctional catalysts for HER and OER exhibit high performance, which is revealed by model development using Pareto active learning; among the catalysts, an optimal catalyst (Pt0.15 Pd0.30 Ru0.30 Cu0.25 ) exhibits a water splitting behavior of 1.56 V at a current density of 10 mA cm-2 . This study opens avenues for the efficient exploration of multimetallic alloys, which can be applied in multifunctional catalysts as well as in other applications.
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Affiliation(s)
- Minki Kim
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
- Korea Advanced Institute of Science and Technology (KAIST) Institute for Nanocentury, Yuseong-gu, Daejeon, 34141, South Korea
| | - Yesol Kim
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
- Korea Advanced Institute of Science and Technology (KAIST) Institute for Nanocentury, Yuseong-gu, Daejeon, 34141, South Korea
| | - Min Young Ha
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, South Korea
| | - Euichul Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Seung Jae Kwak
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, South Korea
| | - Minhee Park
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, South Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Woo-Bin Jung
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Won Bo Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, South Korea
| | - YongJoo Kim
- School of Advanced Materials Engineering, Kookmin University, Seoul, 02707, South Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
- Korea Advanced Institute of Science and Technology (KAIST) Institute for Nanocentury, Yuseong-gu, Daejeon, 34141, South Korea
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Cho G, Grinenval E, Gabriel JCP, Lebental B. Intense pH Sensitivity Modulation in Carbon Nanotube-Based Field-Effect Transistor by Non-Covalent Polyfluorene Functionalization. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1157. [PMID: 37049251 PMCID: PMC10096590 DOI: 10.3390/nano13071157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
We compare the pH sensing performance of non-functionalized carbon nanotubes (CNT) field-effect transistors (p-CNTFET) and CNTFET functionalized with a conjugated polyfluorene polymer (labeled FF-UR) bearing urea-based moieties (f-CNTFET). The devices are electrolyte-gated, PMMA-passivated, 5 µm-channel FETs with unsorted, inkjet-printed single-walled CNT. In phosphate (PBS) and borate (BBS) buffer solutions, the p-CNTFETs exhibit a p-type operation while f-CNTFETs exhibit p-type behavior in BBS and ambipolarity in PBS. The sensitivity to pH is evaluated by measuring the drain current at a gate and drain voltage of -0.8 V. In PBS, p-CNTFETs show a linear, reversible pH response between pH 3 and pH 9 with a sensitivity of 26 ± 2.2%/pH unit; while f-CNTFETs have a much stronger, reversible pH response (373%/pH unit), but only over the range of pH 7 to pH 9. In BBS, both p-CNTFET and f-CNTFET show a linear pH response between pH 5 and 9, with sensitivities of 56%/pH and 96%/pH, respectively. Analysis of the I-V curves as a function of pH suggests that the increased pH sensitivity of f-CNTFET is consistent with interactions of FF-UR with phosphate ions in PBS and boric acid in BBS, with the ratio and charge of the complexed species depending on pH. The complexation affects the efficiency of electrolyte gating and the surface charge around the CNT, both of which modify the I-V response of the CNTFET, leading to the observed current sensitivity as a function of pH. The performances of p-CNTFET in PBS are comparable to the best results in the literature, while the performances of the f-CNTFET far exceed the current state-of-the-art by a factor of four in BBS and more than 10 over a limited range of pH in BBS. This is the first time that a functionalization other than carboxylate moieties has significantly improved the state-of-the-art of pH sensing with CNTFET or CNT chemistors. On the other hand, this study also highlights the challenge of transferring this performance to a real water matrix, where many different species may compete for interactions with FF-UR.
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Affiliation(s)
- Gookbin Cho
- Laboratoire de Physique des Interfaces et des Couches Minces, LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique Paris, 91128 Palaiseau, France
| | - Eva Grinenval
- Laboratoire de Physique des Interfaces et des Couches Minces, LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique Paris, 91128 Palaiseau, France
| | | | - Bérengère Lebental
- IMSE, COSYS, Université Gustave Eiffel, Marne-la-Vallée Campus, 77447 Marne-La-Vallée, France
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50
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Huang P, Han WQ. Recent Advances and Perspectives of Lewis Acidic Etching Route: An Emerging Preparation Strategy for MXenes. NANO-MICRO LETTERS 2023; 15:68. [PMID: 36918453 PMCID: PMC10014646 DOI: 10.1007/s40820-023-01039-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/05/2023] [Indexed: 05/31/2023]
Abstract
Since the discovery in 2011, MXenes have become the rising star in the field of two-dimensional materials. Benefiting from the metallic-level conductivity, large and adjustable gallery spacing, low ion diffusion barrier, rich surface chemistry, superior mechanical strength, MXenes exhibit great application prospects in energy storage and conversion, sensors, optoelectronics, electromagnetic interference shielding and biomedicine. Nevertheless, two issues seriously deteriorate the further development of MXenes. One is the high experimental risk of common preparation methods such as HF etching, and the other is the difficulty in obtaining MXenes with controllable surface groups. Recently, Lewis acidic etching, as a brand-new preparation strategy for MXenes, has attracted intensive attention due to its high safety and the ability to endow MXenes with uniform terminations. However, a comprehensive review of Lewis acidic etching method has not been reported yet. Herein, we first introduce the Lewis acidic etching from the following four aspects: etching mechanism, terminations regulation, in-situ formed metals and delamination of multi-layered MXenes. Further, the applications of MXenes and MXene-based hybrids obtained by Lewis acidic etching route in energy storage and conversion, sensors and microwave absorption are carefully summarized. Finally, some challenges and opportunities of Lewis acidic etching strategy are also presented.
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Affiliation(s)
- Pengfei Huang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Wei-Qiang Han
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
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