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Chen Z, Li L, Chu Y, Zhao F, Zhu Y, Tong S, Zheng H. Bio-Inspired Superhydrophilic Self-Assembled Coronavirus-Like Pt-WC/CNT for Hydrogen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309675. [PMID: 38263847 DOI: 10.1002/smll.202309675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/10/2024] [Indexed: 01/25/2024]
Abstract
This study presents a novel approach to enhance the catalytic activity of composite materials by promoting active surface exposure and improving hydrogen transfer performance. Through a self-assembly route involving tailored gas-solid and galvanic replacement reactions, Pt-WC/CNT catalysts with superhydrophilicity and coronavirus-like structure are synthesized. These unique structural features contribute to a remarkable enhancement in the electrocatalytic performance of the hydrogen evolution reaction (HER). Notably, the Pt-WC/CNT catalyst exhibits an outstanding intrinsic activity and efficient bubble transfer properties, leading to a high turnover frequency of 34.97 H2·s-1 at an overpotential of 100 mV. This value is 4.8 times higher than that achieved by commercial Pt/C catalysts (7.30 H2·s-1), establishing Pt-WC/CNT as one of the most active catalysts reported to date. Moreover, the combination of gas-solid and galvanic replacement reactions in the synthesis process offers a scalable route for the production of Pt-loading controllable composite catalysts, thus challenging the dominance of commercial Pt/C catalysts.
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Affiliation(s)
- Zhaoyang Chen
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Lingtong Li
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Youqun Chu
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Fengming Zhao
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Yinghong Zhu
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Shaoping Tong
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Huajun Zheng
- Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
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Huang JF, Hsieh WJ, Chen JL. Carbon-Promoted Pt-Single Atoms Anchored on RuO 2 Nanorods to Boost Electrochemical Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27504-27510. [PMID: 38758608 PMCID: PMC11145582 DOI: 10.1021/acsami.4c06033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
While efficient for electrochemical hydrogen evolution reaction (HER), Pt is limited by its cost and rarity. Traditional Pt catalysts and Pt single-atom (aPt) catalysts (Pt-SACs) face challenges in maintaining kinetically favorable HER pathways (Volmer-Tafel) at ultralow Pt loadings. Herein, carbon-promoted aPts were deposited on RuO2 without the addition of reductants. aPts confined on carbon-supported RuO2 nanorods (aPt/RuO2NR/Carbon) promoted "inter-aPts" Tafel. aPt/RuO2NR/Carbon is the Pt-SAC that retained underpotentially deposited H; additionally, its HER onset overpotential was "negative". The aPt/RuO2NR/Carbon exhibited 260-fold higher Pt mass activity (imPt)/turnover frequency (TOF) (522.7 A mg-1/528.4 s-1) than that of commercial Pt/C (1.9 A mg-1/1.9 s-1). In an ultralow Pt loading (0.19 μg cm-2), the HER rate-determining step maintained Volmer-Tafel and the Pt utilization efficiency was 100.3%.
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Affiliation(s)
- Jing-Fang Huang
- A
Department of Chemistry, National Chung
Hsing University, Taichung 402, Taiwan (R.O.C)
| | - Wen-Jun Hsieh
- A
Department of Chemistry, National Chung
Hsing University, Taichung 402, Taiwan (R.O.C)
| | - Jeng-Lung Chen
- National
Synchrotron Radiation Research Center, Science-Based
Industrial Park, Hsinchu30076, Taiwan (R.O.C)
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3
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Ahlstedt O, Akola J. Hydrogen evolution descriptors of 55-atom PtNi nanoclusters and interaction with graphite. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:325001. [PMID: 38670082 DOI: 10.1088/1361-648x/ad4432] [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] [Accepted: 04/26/2024] [Indexed: 04/28/2024]
Abstract
Density functional simulations have been performed for PtnNi55-nclusters (n=0,12,20,28,42,55) to investigate their catalytic properties for the hydrogen evolution reaction (HER). Starting from the icosahedralPt12Ni43, hydrogen adsorption energetics and electronicd-band descriptors indicate HER activity comparable to that of purePt55(distorted reduced core structure). The PtNi clusters accommodate a large number of adsorbed hydrogen before reaching a saturated coverage, corresponding to 3-4 H atoms per icosahedron facet (in total ∼70-80). The differential adsorption free energies are well within the window of|ΔGH|<0.1 eV which is considered optimal for HER. The electronic descriptors show similarities with the platinumd-band, although the uncovered PtNi clusters are magnetic. Increasing hydrogen coverage suppresses magnetism and depletes electron density, resulting in expansion of the PtNi clusters. For a single H atom, the adsorption free energy varies between -0.32 (Pt12Ni43) and -0.59 eV (Pt55). The most stable adsorption site is Pt-Pt bridge for Pt-rich compositions and a hollow site surrounded by three Ni for Pt-poor compositions. A hydrogen molecule dissociates spontaneously on the Pt-rich clusters. The above HER activity predictions can be extended to PtNi on carbon support as the interaction with a graphite model structure (w/o vacancy defect) results in minor changes in the cluster properties only. The cluster-surface interaction is the strongest forPt55due to its large facing facet and associated van der Waals forces.
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Affiliation(s)
- Olli Ahlstedt
- Computational Physics Laboratory, Tampere University, PO Box 692, FI-33014 Tampere, Finland
| | - Jaakko Akola
- Computational Physics Laboratory, Tampere University, PO Box 692, FI-33014 Tampere, Finland
- Department of Physics, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
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4
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Doronin IA, Bushnev SO, Vasilov RG, Tsygankov AA. Photosystem II for photoelectrochemical hydrogen production. Biophys Rev 2023; 15:907-920. [PMID: 37975003 PMCID: PMC10643564 DOI: 10.1007/s12551-023-01139-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/03/2023] [Indexed: 11/19/2023] Open
Abstract
Water is a primary source of electrons and protons for photosynthetic organisms. For the production of hydrogen through the process of mimicking natural photosynthesis, photosystem II (PSII)-based hybrid photosynthetic systems have been created, both with and without an external voltage source. In the past 30 years, various PSII immobilization techniques have been proposed, and redox polymers have been created for charge transfer from PSII. This review considers the main components of photosynthetic systems, methods for evaluating efficiency, implemented systems and the ways to improve them. Recently, low-overpotential catalysts have emerged that do not contain precious metals, which could ultimately replace Pt and Ir catalysts and make water electrolysis cheaper. However, PSII competes with semiconductor analogues that are less efficient but more stable. Methods originally created for sensors also allow for the use of PSII as a component of a photoanode. To date, charge transfer from PSII remains a bottleneck for such systems. Novel data about action mechanism of artificial electron acceptors in PSII could develop redox polymers to level out mass transport limitations. Hydrogen-producing systems based on PSII have allowed to work out processes in artificial photosynthesis, investigate its features and limitations. Supplementary Information The online version contains supplementary material available at 10.1007/s12551-023-01139-5.
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Affiliation(s)
- Ivan A. Doronin
- National Research Centre “Kurchatov Institute”, Kurchatova sq., 1, Moscow, 123182 Russia
- Federal Research Center “Pushchino’s center of Biological Research, of Basic Biological Problems of Russian Academy of Sciences, Institutskaya st 2, Moscow, 142290 Russia
| | - Sergey O. Bushnev
- National Research Centre “Kurchatov Institute”, Kurchatova sq., 1, Moscow, 123182 Russia
| | - Raif G. Vasilov
- National Research Centre “Kurchatov Institute”, Kurchatova sq., 1, Moscow, 123182 Russia
| | - Anatoly A. Tsygankov
- Federal Research Center “Pushchino’s center of Biological Research, of Basic Biological Problems of Russian Academy of Sciences, Institutskaya st 2, Moscow, 142290 Russia
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Villalobos Gutiérrez PT, Muñoz Carrillo JL, Sandoval Salazar C, Viveros Paredes JM, Gutiérrez Coronado O. Functionalized Metal Nanoparticles in Cancer Therapy. Pharmaceutics 2023; 15:1932. [PMID: 37514119 PMCID: PMC10383728 DOI: 10.3390/pharmaceutics15071932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Currently, there are many studies on the application of nanotechnology in therapy. Metallic nanoparticles are promising nanomaterials in cancer therapy; however, functionalization of these nanoparticles with biomolecules has become relevant as their effect on cancer cells is considerably increased by photothermal and photodynamic therapies, drug nanocarriers, and specificity by antibodies, resulting in new therapies that are more specific against different types of cancer. This review describes studies on the effect of functionalized palladium, gold, silver and platinum nanoparticles in the treatment of cancer, these nanoparticles themselves show an anticancer effect. This effect is further enhanced when the NPs are functionalized with either antibodies, DNA, RNA, peptides, proteins, or folic acid and other molecules. These NPs can penetrate the cell and accumulate in the tumor tissue, resulting in a cytotoxic effect through the generation of ROS, the induction of apoptosis, cell cycle arrest, DNA fragmentation, and a photothermal effect. NP-based therapy is a new strategy that can be used synergistically with chemotherapy and radiotherapy to achieve more effective therapies and reduce side effects.
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Affiliation(s)
| | | | - Cuauhtémoc Sandoval Salazar
- División de Ciencias de la Salud e Ingenierías, Campus Celaya-Salvatierra, Universidad de Guanajuato, Celaya 38060, Mexico
| | - Juan Manuel Viveros Paredes
- Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara 44430, Mexico
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Zhang KX, Liu ZP. Electrochemical hydrogen evolution on Pt-based catalysts from a theoretical perspective. J Chem Phys 2023; 158:141002. [PMID: 37061480 DOI: 10.1063/5.0142540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2023] Open
Abstract
Hydrogen evolution reaction (HER) by splitting water is a key technology toward a clean energy society, where Pt-based catalysts were long known to have the highest activity under acidic electrochemical conditions but suffer from high cost and poor stability. Here, we overview the current status of Pt-catalyzed HER from a theoretical perspective, focusing on the methodology development of electrochemistry simulation, catalytic mechanism, and catalyst stability. Recent developments in theoretical methods for studying electrochemistry are introduced, elaborating on how they describe solid-liquid interface reactions under electrochemical potentials. The HER mechanism, the reaction kinetics, and the reaction sites on Pt are then summarized, which provides an atomic-level picture of Pt catalyst surface dynamics under reaction conditions. Finally, state-of-the-art experimental solutions to improve catalyst stability are also introduced, which illustrates the significance of fundamental understandings in the new catalyst design.
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Affiliation(s)
- Ke-Xiang Zhang
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Zhi-Pan Liu
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry, Fudan University, Shanghai 200433, China
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7
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Zhang K, Schötz S, Reichstein J, Groppe P, Stockinger N, Wintzheimer S, Mandel K, Libuda J, Retzer T. Supraparticles for naked-eye H 2 indication and monitoring: Improving performance by variation of the catalyst nanoparticles. J Chem Phys 2023; 158:134722. [PMID: 37031150 DOI: 10.1063/5.0135130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2023] Open
Abstract
The recent transition to H2-based energy storage demands reliable H2 sensors that allow for easy, fast, and reliable detection of leaks. Conventional H2 detectors are based on the changes of physical properties of H2 probes induced by subsurface H-atoms to a material such as electrical conductivity. Herein, we report on highly reactive gasochromic H2 detectors based on the adsorption of H2 on the material surface. We prepared supraparticles (SPs) containing different types of noble metal nanoparticles (NPs), silica NPs, and the dye resazurin by spray-drying and tested their performance for H2 detection. The material undergoes a distinct color change due to the hydrogenation of the purple resazurin to pink resorufin and, finally, colorless hydroresorufin. The stepwise transition is fast and visible to the naked eye. To further improve the performance of the sensor, we tested the reactivity of SPs with different catalytically active NPs by means of in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). We show that the choice of the NP catalyst has a pronounced effect on the response of the H2 indicator. In addition, we demonstrate that the performance depends on the size of the NPs. These effects are attributed to the availability of reactive H-atoms on the NP surface. Among the materials studied, Pt-containing SPs gave the best results for H2 detection.
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Affiliation(s)
- Kailun Zhang
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Simon Schötz
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Jakob Reichstein
- Inorganic Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Philipp Groppe
- Inorganic Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Nina Stockinger
- Inorganic Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Susanne Wintzheimer
- Inorganic Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Karl Mandel
- Inorganic Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Jörg Libuda
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | - Tanja Retzer
- Interface Research and Catalysis, ECRC, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
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8
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Gong L, Zhu J, Xia F, Zhang Y, Shi W, Chen L, Yu J, Wu J, Mu S. Marriage of Ultralow Platinum and Single-Atom MnN 4 Moiety for Augmented ORR and HER Catalysis. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Affiliation(s)
- Lei Gong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, China
| | - Jiawei Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Fanjie Xia
- NRC (Nanostructure Research Centre), Wuhan University of Technology, Wuhan 430070, China
| | - Yuhan Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Wenjie Shi
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Lei Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Jun Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Jinsong Wu
- NRC (Nanostructure Research Centre), Wuhan University of Technology, Wuhan 430070, China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, China
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9
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Chu Y, Peng R, Chen Z, Li L, Zhao F, Zhu Y, Tong S, Zheng H. Modulating Dominant Facets of Pt through Multistep Selective Anchored on WC for Enhanced Hydrogen Evolution Catalysis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9263-9272. [PMID: 36780581 DOI: 10.1021/acsami.2c19879] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Facilitating the exposure of the active crystal facets on the surfaces of composite catalysts is a representative route to promote catalytic activity. Based on a tailored galvanic replacement reaction, herein, a self-assembly route is reported to prepare Pt-WC/CNT with Pt (200) preferential orientation and well-dispersed structure, which are capable of substantially boosting electrocatalysis in hydrogen evolution reaction (HER). Formation mechanism reveals that the (200)-dominated Pt-based catalysts form in galvanic replacement reaction through selective anchored on WC, and the multistep galvanic replacement process plays a critical role to realize the Pt (200)-dominated growth in higher Pt loading catalyst. These unique structural features endow the Pt-WC/CNT with a high turnover frequency of 94.18 H2·s-1 at 100 mV overpotential, 7-fold higher than that of commercial Pt/C (13.55 H2·s-1), ranking it among the most active catalysts. In addition, this method, which combines with gas-solid reaction and galvanic replacement reaction, paves the way to scalable synthesis as Pt facets-controllable composite catalysts to challenge commercial Pt/C.
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Affiliation(s)
- Youqun Chu
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Ronggui Peng
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Zhaoyang Chen
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Lingtong Li
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Fengming Zhao
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Yinghong Zhu
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Shaoping Tong
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
| | - Huajun Zheng
- International Sci. & Tech. Cooperation Base of Energy Materials and Application, Petroleum and Chemical Industry Key Laboratory of Organic Electrochemical Synthesis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou City, Zhejiang 310014, China
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10
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Yohannes AG, Fink K, Kondov I. Pt nanoparticles under oxidizing conditions - implications of particle size, adsorption sites and oxygen coverage on stability. NANOSCALE ADVANCES 2022; 4:4554-4569. [PMID: 36341292 PMCID: PMC9595194 DOI: 10.1039/d2na00490a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Platinum nanoparticles are efficient catalysts for different reactions, such as oxidation of carbon and nitrogen monoxides. Adsorption and interaction of oxygen with the nanoparticle surface, taking place under reaction conditions, determine not only the catalytic efficiency but also the stability of the nanoparticles against oxidation. In this study, platinum nanoparticles in oxygen environment are investigated by systematic screening of initial nanoparticle-oxygen configurations and employing density functional theory and a thermodynamics-based approach. The structures formed at low oxygen coverages are described by adsorption of atomic oxygen on the nanoparticles whereas at high coverages oxide-like species are formed. The relative stability of adsorption configurations at different oxygen coverages, including the phase of fully oxidized nanoparticles, is investigated by constructing p-T phase diagrams for the studied systems.
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Affiliation(s)
- Asfaw G Yohannes
- Institute of Nanotechnology, Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Steinbuch Centre for Computing, Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Karin Fink
- Institute of Nanotechnology, Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Ivan Kondov
- Steinbuch Centre for Computing, Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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Zhou B, Gao R, Zou JJ, Yang H. Surface Design Strategy of Catalysts for Water Electrolysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202336. [PMID: 35665595 DOI: 10.1002/smll.202202336] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Indexed: 06/15/2023]
Abstract
Hydrogen, a new energy carrier that can replace traditional fossil fuels, is seen as one of the most promising clean energy sources. The use of renewable electricity to drive hydrogen production has very broad prospects for addressing energy and environmental problems. Therefore, many researchers favor electrolytic water due to its green and low-cost advantages. The electrolytic water reaction comprises the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER). Understanding the OER and HER mechanisms in acidic and alkaline processes contributes to further studying the design of surface regulation of electrolytic water catalysts. The OER and HER catalysts are mainly reviewed for defects, doping, alloying, surface reconstruction, crystal surface structure, and heterostructures. Besides, recent catalysts for overall water splitting are also reviewed. Finally, this review paves the way to the rational design and synthesis of new materials for highly efficient electrocatalysis.
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Affiliation(s)
- Binghui Zhou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Ruijie Gao
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 200237, China
| | - Huaming Yang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, 430074, China
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 200237, China
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
- Hunan Key Lab of Mineral Materials and Application, Central South University, Changsha, 410083, China
- State Key Lab of Powder Metallurgy, Central South University, Changsha, 410083, China
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12
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Sun F, Tang Q, Jiang DE. Theoretical Advances in Understanding and Designing the Active Sites for Hydrogen Evolution Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02081] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Fang Sun
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - Qing Tang
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing 401331, China
| | - De-en Jiang
- Department of Chemistry, University of California, Riverside, California 92521, United States
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13
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Jiang X, Zhang W, Xu G, Lai J, Wang L. Interface engineering of metal nanomaterials enhance the electrocatalytic water splitting and fuel cell performance. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Xue Jiang
- Key Laboratory of Eco‐chemical Engineering, Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology Qingdao University of Science and Technology Qingdao P. R. China
- College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao P. R. China
| | - Wen Zhang
- Key Laboratory of Eco‐chemical Engineering, Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology Qingdao University of Science and Technology Qingdao P. R. China
| | - Guang‐Rui Xu
- Key Laboratory of Eco‐chemical Engineering, Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology Qingdao University of Science and Technology Qingdao P. R. China
- School of Materials Science and Engineering Qingdao University of Science and Technology Qingdao P. R. China
| | - Jianping Lai
- Key Laboratory of Eco‐chemical Engineering, Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology Qingdao University of Science and Technology Qingdao P. R. China
- College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao P. R. China
| | - Lei Wang
- Key Laboratory of Eco‐chemical Engineering, Key Laboratory of Optic‐electric Sensing and Analytical Chemistry of Life Science, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology Qingdao University of Science and Technology Qingdao P. R. China
- College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao P. R. China
- College of Environment and Safety Engineering Qingdao University of Science and Technology Qingdao P. R. China
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14
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Yang Y, Dai Q, Shi L, Liu Y, Isimjan TT, Yang X. Electronic Modulation of Pt Nanoparticles on Ni 3N-Mo 2C by Support-Induced Strategy for Accelerating Hydrogen Oxidation and Evolution. J Phys Chem Lett 2022; 13:2107-2116. [PMID: 35225609 DOI: 10.1021/acs.jpclett.2c00021] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrochemical energy conversion and storage through hydrogen has revolutionized sustainable energy systems using fuel cells and electrolyzers. Regrettably, the sluggish alkaline hydrogen oxidation reaction (HOR) hampers advances in fuel cells. Herein, we report a Pt/Ni3N-Mo2C bifunctional electrocatalyst toward HOR and hydrogen evolution reaction (HER). The Pt/Ni3N-Mo2C exhibits remarkable HOR/HER performance in alkaline media. The mass activity at 50 mV and exchange current density of HOR are 5.1 and 1.5 times that of commercial Pt/C, respectively. Moreover, it possesses an impressive HER activity with an overpotential of 11 mV @ 10 mA cm-2, which is lower than that of Pt/C and most reported electrocatalysts under the same conditions. Density functional theory (DFT) calculations combined with experimental results reveal that Pt/Ni3N-Mo2C not only possesses an optimal balance between hydrogen binding energy (HBE) and OH- adsorption but also facilitates water adsorption and dissociation on the catalyst surface, which contribute to the excellent HOR/HER performance. Thus, this work may guide bifunctional HOR/HER catalyst design in the conversion and transport of energy.
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Affiliation(s)
- Yuting Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Qiumei Dai
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Luyan Shi
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Yi Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People's Republic of China
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15
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Recent advances in the application of machine-learning algorithms to predict adsorption energies. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Yu Y, Zhou Z, Song X, Song X, Zhang Z, Jing C. Mechanistic insights into dual active sites in Au@W18O49 electrocatalysts for hydrogen evolution reaction. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00993e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrocatalytic hydrogen evolution reaction (HER) for water splitting is promising to replace fossil fuels. The high-efficient electrocatalyst with multiple functional sites is indispensable but challenging. Herein, urchin-like Au@W18O49 electrocatalyst with...
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17
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Simon ZC, Lopato EM, Bhat M, Moncure PJ, Bernhard SM, Kitchin JR, Bernhard S, Millstone JE. Ligand Enhanced Activity of In Situ Formed Nanoparticles for Photocatalytic Hydrogen Evolution. ChemCatChem 2021. [DOI: 10.1002/cctc.202101551] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zoe C. Simon
- Department of Chemistry University of Pittsburgh Pittsburgh PA-15260 USA
| | - Eric M. Lopato
- Department of Chemistry Carnegie Mellon University Pittsburgh PA-15213 USA
| | - Maya Bhat
- Department of Chemical Engineering Carnegie Mellon University Pittsburgh PA-15213 USA
| | - Paige J. Moncure
- Department of Chemistry University of Pittsburgh Pittsburgh PA-15260 USA
| | - Sarah M. Bernhard
- Department of Chemistry Carnegie Mellon University Pittsburgh PA-15213 USA
| | - John R. Kitchin
- Department of Chemical Engineering Carnegie Mellon University Pittsburgh PA-15213 USA
| | - Stefan Bernhard
- Department of Chemistry Carnegie Mellon University Pittsburgh PA-15213 USA
| | - Jill E. Millstone
- Department of Chemistry University of Pittsburgh Pittsburgh PA-15260 USA
- Department of Chemical and Petroleum Engineering University of Pittsburgh Pittsburgh PA-15260 USA
- Department of Mechanical Engineering and Materials Science University of Pittsburgh Pittsburgh PA-15260 USA
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18
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Farkaš B, Terranova U, de Leeuw NH. The mechanism underlying the functionalisation of cobalt nanoparticles by carboxylic acids: a first-principles computational study. J Mater Chem B 2021; 9:4915-4928. [PMID: 34100480 DOI: 10.1039/d0tb02928a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promise of biocompatible magnetic nanoparticles with high magnetic saturation in the implementation as drug carriers and hyperthermia agents has generated significant interest in functionalised cobalt nanoparticles. Carboxylic acid coatings on metallic nanoparticles have been shown as an attractive option owing to their respectable stability and biocompatibility. However, only limited information is available on the molecular mechanism leading to the formation of such protective coatings. In this study, ab initio molecular dynamics simulations have been used to unravel the functionalisation mechanism starting from a neutral cobalt cluster and valeric acid molecules. Three stages were detected in the coating process: (i) rapid initial adsorption of acid molecules, (ii) simultaneous adsorption of new molecules and dissociation of those already interacting with the cluster, and, finally, (iii) grouping of dissociated hydrogen atoms and subsequent desorption of acid molecules. The fate of the hydrogen atoms was probed through a combination of static and dynamic ab initio modelling approaches, which predicted H2 generation with favourable energetics. A better understanding of the functionalisation and interaction mechanisms will aid the rational design of biocompatible cobalt nanoparticles for various applications.
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Affiliation(s)
- Barbara Farkaš
- School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
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19
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Mei L, Gao X, Gao Z, Zhang Q, Yu X, Rogach AL, Zeng Z. Size-selective synthesis of platinum nanoparticles on transition-metal dichalcogenides for the hydrogen evolution reaction. Chem Commun (Camb) 2021; 57:2879-2882. [PMID: 33616580 DOI: 10.1039/d0cc08091h] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report a micellar system to prepare Pt-TMDs composites with tunable Pt nanoparticles (NPs, 2-6 nm in size) on single-layer TMDs (MoS2, TiS2, TaS2) nanosheets. The Pt-MoS2 composites have shown excellent performance for the hydrogen evolution reaction (HER) with the Pt NPs exhibiting a volcano-type size effect toward HER activity due to the synergistic effects between the Pt NPs and MoS2.
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Affiliation(s)
- Liang Mei
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China.
| | - Xiaoping Gao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Zhan Gao
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China
| | - Qingyong Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China.
| | - Xinge Yu
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China
| | - Andrey L Rogach
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China.
| | - Zhiyuan Zeng
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 999077, P. R. China.
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20
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Klein J, Engstfeld AK, Brimaud S, Behm RJ. Pt nanocluster size effects in the hydrogen evolution reaction: approaching the theoretical maximum activity. Phys Chem Chem Phys 2020; 22:19059-19068. [PMID: 32812961 DOI: 10.1039/d0cp02793f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen production from electrocatalytic water splitting in electrolyzers is a key process to store excess electric energy produced from intermittent renewable energy sources. For proton exchange membrane (PEM) electrolyzers, carbon supported platinum particles exhibit the highest rates for the hydrogen evolution reaction (HER); however, high Pt costs limit the wide spread use of this technology. By employing a graphene layer grown on a Ru(0001) single crystal as a template for Pt nanocluster (NC) growth, we studied the dependence of the HER activity on the NC size using NCs of different sizes. We provide clear quantitative experimental evidence for a volcano-like relationship between the HER activity and the NC size which has been missing so far. For Pt NCs with very low sizes below 2 nm, we found stunningly improved exchange HER current densities. The highest exchange current density was observed for Pt NCs with an average size of ca. 38 atoms. These Pt38 NCs do not only surpass the Pt-mass-specific activity of commercial Pt electrode materials by well above three orders of magnitude, also their exchange current density is located close to the maximum exchange current density for the HER predicted theoretically for transition metal surfaces. The present work provides a strong stimulus for future research towards technically feasible Pt NC catalysts with cluster sizes in the range of few tens of Pt atoms.
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Affiliation(s)
- Jens Klein
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany.
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21
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Farkaš B, Perry CB, Jones G, de Leeuw NH. Adsorbate-Induced Segregation of Cobalt from PtCo Nanoparticles: Modeling Au Doping and Core AuCo Alloying for the Improvement of Fuel Cell Cathode Catalysts. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:18321-18334. [PMID: 32905400 PMCID: PMC7469135 DOI: 10.1021/acs.jpcc.0c04460] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/22/2020] [Indexed: 06/04/2023]
Abstract
Platinum, when used as a cathode material for the oxygen reduction reaction, suffers from high overpotential and possible dissolution, in addition to the scarcity of the metal and resulting cost. Although the introduction of cobalt has been reported to improve reaction kinetics and decrease the precious metal loading, surface segregation or complete leakage of Co atoms causes degradation of the membrane electrode assembly, and either of these scenarios of structural rearrangement eventually decreases catalytic power. Ternary PtCo alloys with noble metals could possibly maintain activity with a higher dissolution potential. First-principles-based theoretical methods are utilized to identify the critical factors affecting segregation in Pt-Co binary and Pt-Co-Au ternary nanoparticles in the presence of oxidizing species. With a decreasing share of Pt, surface segregation of Co atoms was already found to become thermodynamically viable in the PtCo systems at low oxygen concentrations, which is assigned to high charge transfer between species. While the introduction of gold as a dopant caused structural changes that favor segregation of Co, creation of CoAu alloy core is calculated to significantly suppress Co leakage through modification of the electronic properties. The theoretical framework of geometrically different ternary systems provides a new route for the rational design of oxygen reduction catalysts.
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Affiliation(s)
- Barbara Farkaš
- School
of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Christopher B. Perry
- Johnson
Matthey Research Centre, CSIR, Meiring Naude Road, Brummeria, Pretoria 0184, South Africa
| | - Glenn Jones
- Johnson
Matthey Technology Center, Blount’s Court, Sonning Common, Reading RG4 9NH, U.K.
| | - Nora H. de Leeuw
- School
of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
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22
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Patra SG, Sathiyan K, Meistelman M, Zidki T. Green Synthesis of M
0
Nanoparticles (M=Pd, Pt, and Ru) for Electrocatalytic Hydrogen Evolution. Isr J Chem 2020. [DOI: 10.1002/ijch.201900175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shanti G. Patra
- Department of Chemical Sciences and the Center for Radical ReactionsAriel University Ariel Israel
| | - Krishnamoorthy Sathiyan
- Department of Chemical Sciences and the Center for Radical ReactionsAriel University Ariel Israel
| | | | - Tomer Zidki
- Department of Chemical Sciences and the Center for Radical ReactionsAriel University Ariel Israel
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23
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Facile synthesis of Nafion-supported Pt nanoparticles with ultra-low loading as a high-performance electrocatalyst for hydrogen evolution reaction. J Colloid Interface Sci 2020; 566:505-512. [PMID: 32044097 DOI: 10.1016/j.jcis.2019.10.112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/24/2019] [Accepted: 10/30/2019] [Indexed: 11/22/2022]
Abstract
x%Pt-Naf-CV (Pt-Nafion-Cyclic Voltammetry) catalysts with homogeneously distributed platinum nanoparticles and ultra-low Pt loading are successfully synthesized by using a facile potential cycling approach. The as-synthesized 0.8%Pt-Naf-CV catalyst exhibits an enhanced electrocatalytic activity for hydrogen evolution reaction (HER) in 0.5 M H2SO4 solution, which obtains a low overpotential of 34 mV at 10 mA cm-2. The linear sweep voltammetry (LSV) curve of 0.8%Pt-Naf-CV catalyst is almost consistent with that of commercial Pt/C. However, the 0.8%Pt-Naf-CV catalyst displays a more excellent stability and durability in comparison with commercial Pt/C. Besides, the Pt loading of Pt/C (Pt-10 wt%) is about 10 times that of 0.8%Pt-Naf-CV catalyst. The improved electrocatalytic performances are derived from the synergistic effects of Pt and Nafion. The Nafion plays a significant role as a dispersant, carrier and structure directing agent on the morphology and size of the Pt catalyst. This result contributes a promising method to enhance the catalytic activity and reduce the amount of Pt.
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24
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First-principles microkinetics simulations of electrochemical reduction of CO2 over Cu catalysts. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135665] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Liu T, Fang C, Yu B, You Y, Niu H, Zhou R, Zhang J, Xu J. Vanadium-doping in interlayer-expanded MoS2 nanosheets for the efficient electrocatalytic hydrogen evolution reaction. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00135j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Synergistic modulations of vanadium doping, interlayer expansion and hybrid 1T&2H phases of few-layered MoS2 nanosheets are realized to gain structural and electronic benefits for enhanced hydrogen evolution reaction performance.
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Affiliation(s)
- Tong Liu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Changji Fang
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Bansui Yu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yu You
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Haihong Niu
- School of Electrical Engineering and Automation
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Ru Zhou
- School of Electrical Engineering and Automation
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Junjun Zhang
- School of Physics and Materials Engineering
- Hefei Normal University
- Hefei 230601
- P.R. China
- Department of Materials Science & Engineering
| | - Jun Xu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
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26
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Li C, Gao H, Wan W, Mueller T. Mechanisms for hydrogen evolution on transition metal phosphide catalysts and a comparison to Pt(111). Phys Chem Chem Phys 2019; 21:24489-24498. [PMID: 31687692 DOI: 10.1039/c9cp05094a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Earth-abundant transition metal phosphides have been demonstrated to be promising alternative catalysts to replace Pt for hydrogen evolution reaction (HER). However, the mechanism for the hydrogen evolution reaction on transition metal phosphides remains unclear. Here, we explore the catalytically active sites and the reaction mechanisms on a variety of model transition metal phosphide surfaces by building cluster expansion models and running Monte Carlo simulations. We demonstrate that the effect of hydrogen coverage, interaction between hydrogen atoms and desorption kinetics all dictate the HER mechanisms and the active sites, and we propose mechanisms that are in good agreement with experimental studies. The present method provides a general and effective way to probe the active sites and study the mechanisms of catalytic reactions, which can facilitate the rational design of highly active electrocatalysts.
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Affiliation(s)
- Chenyang Li
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA.
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27
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Zhu J, Hu L, Zhao P, Lee LYS, Wong KY. Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles. Chem Rev 2019; 120:851-918. [DOI: 10.1021/acs.chemrev.9b00248] [Citation(s) in RCA: 946] [Impact Index Per Article: 189.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Zhu
- Institute of Materials, China Academy of Engineering Physics, No. 9, Huafengxincun, Jiangyou City, Sichuan Province 621908, P. R. China
| | - Liangsheng Hu
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong 515063, P. R. China
| | - Pengxiang Zhao
- Institute of Materials, China Academy of Engineering Physics, No. 9, Huafengxincun, Jiangyou City, Sichuan Province 621908, P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
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28
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Xie X, Song M, Wang L, Engelhard MH, Luo L, Miller A, Zhang Y, Du L, Pan H, Nie Z, Chu Y, Estevez L, Wei Z, Liu H, Wang C, Li D, Shao Y. Electrocatalytic Hydrogen Evolution in Neutral pH Solutions: Dual-Phase Synergy. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02609] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaohong Xie
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Miao Song
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Luguang Wang
- Department of Biological and Ecological Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Mark H. Engelhard
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Langli Luo
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Andrew Miller
- Department of Biological and Ecological Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Yayun Zhang
- Bioproducts, Sciences and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, Washington 99352, United States
| | - Lei Du
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Huilin Pan
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zimin Nie
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yuanyuan Chu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Luis Estevez
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zidong Wei
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Hong Liu
- Department of Biological and Ecological Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Chongmin Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Dongsheng Li
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yuyan Shao
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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29
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Yu HZ, Wang Y, Ying J, Wu SM, Lu Y, Hu J, Hu JS, Shen L, Xiao YX, Geng W, Chang GG, Janiak C, Li WH, Yang XY. Hydrogen Evolution Enhancement over a Cobalt-Based Schottky Interface. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27641-27647. [PMID: 31252487 DOI: 10.1021/acsami.9b03368] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A proof-of-concept strategy for significant enhancement of hydrogen evolution reaction (HER) performance of transition metals via construction of a metal/semiconductor Schottky junction is presented. The decoration of low-cost commercial TiO2 nanoparticles on the surface of microscale Co dendrites causes a significant charge transfer across the Co/TiO2 Schottky interface and enhances the local electron density at the Co surface, confirmed by X-ray photoelectron spectroscopy results and density functional theory calculations. The Co/TiO2 Schottky catalyst displays superior HER activity with a turnover frequency of 0.052 s-1 and an exchange current density of 79 μA cm-2, which are about 4.3 and 4.0 times greater than that of pristine Co, respectively. Moreover, the Co/TiO2 Schottky catalyst displays excellent electrochemical durability for long-term operation in both alkaline solution and high saline solution. Theoretical calculations suggest that the Schottky junction plays an important role to optimize hydrogen adsorption free energy (ΔGH*) by tuning the electronic structure, which enhances the performance for HER of the Co/TiO2 Schottky catalyst. This study of modulating the electronic structure of the catalysts via the Schottky junction could provide valuable insights for designing and synthesizing low-cost, high-performance electrocatalysts.
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Affiliation(s)
| | | | - Jie Ying
- School of Chemical Engineering and Technology , Sun Yat-sen University , Zhuhai 519082 , China
- Institut für Anorganische Chemie und Strukturchemie , Heinrich-Heine-Universität Düsseldorf , 40204 Düsseldorf , Germany
| | | | | | | | - Ji-Song Hu
- School of Science , Hubei University of Technology , Wuhan 430068 , China
| | | | | | | | | | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie , Heinrich-Heine-Universität Düsseldorf , 40204 Düsseldorf , Germany
| | - Wei-Hua Li
- School of Chemical Engineering and Technology , Sun Yat-sen University , Zhuhai 519082 , China
| | - Xiao-Yu Yang
- School of Engineering and Applied Sciences , Harvard University , Cambridge , Massachusetts 02138 , United States
- Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai) , Zhuhai 519000 , China
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30
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Matera S, Schneider WF, Heyden A, Savara A. Progress in Accurate Chemical Kinetic Modeling, Simulations, and Parameter Estimation for Heterogeneous Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01234] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sebastian Matera
- Fachbereich Mathematik and Informatik, Freie Universität, 14195 Berlin, Germany
| | - William F. Schneider
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Andreas Heyden
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Aditya Savara
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
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31
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32
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Parker SF, Mukhopadhyay S, Jiménez-Ruiz M, Albers PW. Adsorbed States of Hydrogen on Platinum: A New Perspective. Chemistry 2019; 25:6496-6499. [PMID: 30919526 PMCID: PMC6767033 DOI: 10.1002/chem.201900351] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Indexed: 01/20/2023]
Abstract
The interaction of hydrogen with platinum is enormously important in many areas of catalysis. The most significant of these are in polymer electrolyte membrane fuel cells (PEMFC), in which carbon‐supported platinum is used to dissociate hydrogen gas at the anode. The nature of adsorbed hydrogen on platinum has been studied for many years on single‐crystal surfaces, on high‐surface area‐platinum metal (Raney platinum and platinum black), and on supported catalysts. Many forms of vibrational spectroscopy have played a key role in these studies, however, there is still no clear consensus as to the assignment of the spectra. In this work, ab initio molecular dynamics (AIMD) and lattice dynamics were used to study a 1.1 nm nanoparticle, Pt44H80. The results were compared to new inelastic neutron scattering spectra of hydrogen on platinum black and of a carbon‐supported platinum fuel cell catalyst and an assignment scheme that rationalises all previous data is proposed.
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Affiliation(s)
- Stewart F Parker
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK
| | | | - Mónica Jiménez-Ruiz
- Institut Laue-Langevin, 71 avenue des Martyrs, CS, 20156 38042, Grenoble, Cedex 9, France
| | - Peter W Albers
- Evonik Technology & Infrastructure GmbH, Rodenbacher Chaussee 4, 63457, Hanau/Wolfgang, Germany
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33
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Germano LD, Marangoni VS, Mogili NVV, Seixas L, Maroneze CM. Ultrasmall (<2 nm) Au@Pt Nanostructures: Tuning the Surface Electronic States for Electrocatalysis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5661-5667. [PMID: 30694046 DOI: 10.1021/acsami.8b12712] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The ability to tune the electronic properties of nanomaterials has played a major role in the development of sustainable energy technologies. Metallic nanocatalysts are at the forefront of these advances. Their unique properties become even more interesting when we can control the distribution of the electronic states in the nanostructure. Here, we provide a comprehensive evaluation of the electronic surface states in ultrasmall metallic nanostructures by combining experimental and theoretical methods. The developed strategy allows the controlled synthesis of bimetallic nanostructures in the core-shell configuration, dispensing of the use of any surfactant or stabilizing agents, which usually inactivate important surface phenomena. The synthesized ultrasmall Au@Pt nanoarchitecture (∼1.8 nm) presents an enhanced performance catalyzing the hydrogen evolution reaction. First-principles calculations of projected and space-resolved local density of states of Au55@Pt92 (core-shell), Au55Pt92 (alloy), and Pt147 nanoparticles show a prominent increase in the surface electronic states for the core-shell bimetallic nanomaterial. It arises from a more-effective charge transfer from gold to the surface platinum atoms in the core-shell configuration. In pure Pt147 or Au55Pt92 alloy nanoparticles, a great part of the electronic states near the Fermi level is buried in the core atoms, disabling these states for catalytic applications. The proposed experimental-theoretical approach may be useful for the design of other systems composed of metallic nanoparticles supported on distinct substrates, such as two-dimensional materials and porous matrices. These nanomaterials find several applications not only in heterogeneous catalysis but also in sensing and optoelectronic devices.
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Affiliation(s)
- Lucas D Germano
- MackGraphe - Graphene and Nanomaterials Research Center , Mackenzie Presbyterian University , Rua da Consolação 896 , São Paulo , 01302-907 , SP, Brazil
| | - Valeria S Marangoni
- MackGraphe - Graphene and Nanomaterials Research Center , Mackenzie Presbyterian University , Rua da Consolação 896 , São Paulo , 01302-907 , SP, Brazil
| | | | - Leandro Seixas
- MackGraphe - Graphene and Nanomaterials Research Center , Mackenzie Presbyterian University , Rua da Consolação 896 , São Paulo , 01302-907 , SP, Brazil
| | - Camila M Maroneze
- MackGraphe - Graphene and Nanomaterials Research Center , Mackenzie Presbyterian University , Rua da Consolação 896 , São Paulo , 01302-907 , SP, Brazil
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Xu J, Zhu Y, Yu B, Fang C, Zhang J. Metallic 1T-VS2 nanosheets featuring V2+ self-doping and mesopores towards an efficient hydrogen evolution reaction. Inorg Chem Front 2019. [DOI: 10.1039/c9qi01142k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Metallic 1T-VS2 nanosheets featuring V2+-doping and plenty of mesopores have abundant defects and high conductivity and exhibit superior catalytic activity for electrochemical water splitting.
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Affiliation(s)
- Jun Xu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yuan Zhu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Bansui Yu
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Changji Fang
- School of Electronic Science & Applied Physics
- Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Junjun Zhang
- School of Physics and Materials Engineering
- Hefei Normal University
- Hefei 230601
- P.R. China
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Wong ZM, Tan TL, Yang SW, Xu GQ. Optimizing special quasirandom structure (SQS) models for accurate functional property prediction in disordered 2D alloys. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:485402. [PMID: 30406769 DOI: 10.1088/1361-648x/aae764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
2D materials such as MXenes have garnered attention in a wide field of applications ranging from energy to environment to medical. Properties of 2D materials can be tailored via alloying and in some cases, solid-solutions (disordered alloys) are formed. To predict the disordered alloy properties via first-principles, the model structure needs to imitate the random arrangements of alloyants and yet remains computationally tractable. Using density functional theory and the cluster expansion method, we investigate the accuracy of using of special quasirandom structures (SQSs) for predicting disordered 2D alloy properties, evaluating the effect of SQS supercell size on the prediction quality of formation energies, elastic properties, and structural parameters. We illustrate the findings with 5 different disordered binary [Formula: see text] MXene alloy systems (where M = Ti and M' = Zr, Hf, V, Nb, or Ta), demonstrating that SQSs around 6-8 times the primitive cell (N = 6-8) are sufficient to attain convergence in the property predictions versus supercell size. For formation energies, SQSs with N > 4 are found to reproduce the formation energies of the fully disordered phase within ~2.5 meV. For the simulation of the experimentally-synthesized TiNbCO2, we find convergence in structural parameters and elastic tensors at N ~ 6. We traced the convergence of the predictions to the convergence in the band structure-related properties via analysis of the electronic densities-of-states and the projected crystal overlap Hamilton population. Our findings suggest that modest sized SQSs would reproduce the properties of disordered MXene alloys. The results should help guide the investigations of structure-property relationships in other disordered 2D materials as well.
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Affiliation(s)
- Zicong Marvin Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore. Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
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36
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Dong Y, Dang J, Wang W, Yin S, Wang Y. First-Principles Determination of Active Sites of Ni Metal-Based Electrocatalysts for Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:39624-39630. [PMID: 30362712 DOI: 10.1021/acsami.8b12573] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The determination of active sites of materials is essential for the molecular design of high-performance catalysts. In this study, the first-principles method is applied to investigate the active sites of low-cost Ni metal-based electrocatalysts for hydrogen evolution reactions (HER), which is a promising alternative to expensive Pt metal-based catalysts. The adsorption of hydrogen on different sites of pristine and partially oxidized Ni(111) surface is investigated. All of the possible configurations have been systematically investigated here with the consideration of their Boltzmann distribution. Using the Gibbs free energy of intermediate H atoms (Δ GH*) as a descriptor, it is found that the Δ GH* increases with the increase of the coverage of oxygen atoms. The slightly oxidized surface Ni atoms are theoretically identified to be the best catalytic centers for the electrocatalytic HERs when the coverage of oxygen is considerably low. On the basis of the analyses of Bader charge distribution and density of states, our results reveal that the superior performance of the slightly oxidized surface Ni atoms can be ascribed to the optimal electronic properties.
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Affiliation(s)
- Yujuan Dong
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Jingshuang Dang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Wenliang Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Shiwei Yin
- Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry & Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Yun Wang
- Centre for Clean Environment and Energy, School of Environment and Science , Griffith University , Gold Coast Campus , Southport , Queensland 4222 , Australia
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Wong ZM, Tan TL, Yang SW, Xu GQ. Enhancing the Photocatalytic Performance of MXenes via Stoichiometry Engineering of Their Electronic and Optical Properties. ACS APPLIED MATERIALS & INTERFACES 2018; 10:39879-39889. [PMID: 30353717 DOI: 10.1021/acsami.8b14325] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Combining both density functional theory and the cluster expansion method, we investigate 3 binary MXene alloy systems of semiconducting Ti2CO2, Zr2CO2, and Hf2CO2, where the transition metals substitute one another (i.e., Ti2(1- x)Zr2 xCO2, Ti2(1- x)Hf2 xCO2, and Zr2(1- x)Hf2 xCO2). We show that this group of MXene alloys forms the solid-solution phase across all compositions. Special quasirandom structures are generated to model the solid-solution phase of these alloys, using which we demonstrate how their structural, mechanical, electronic, and optical properties are tuned via stoichiometry engineering. These alloys exhibit outstanding mechanical strength and stability. They possess indirect band gaps of 1.25-1.80 eV. For Ti2(1- x)Zr2 xCO2 and Ti2(1- x)Hf2 xCO2, they display higher absorbance in the solar spectrum than their constituent Zr2CO2 and Hf2CO2, respectively. Most of the MXene alloys also show appropriately aligned band edges for water splitting. We predict the Ti2(1- x)Zr2 xCO2 alloy with x = 0.2778 to be the most promising water-splitting photocatalyst among the MXenes studied here, outperforming its constituents, Ti2CO2 and Zr2CO2, when solar absorbance performance and band-edge alignments are simultaneously considered. This work demonstrates that alloying can be used to effectively tune photocatalytic performance.
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Affiliation(s)
- Zicong Marvin Wong
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , 117543 , Singapore
- Agency for Science, Technology and Research , Institute of High Performance Computing , 1 Fusionopolis Way, #16-16 Connexis , 138632 , Singapore
| | - Teck Leong Tan
- Agency for Science, Technology and Research , Institute of High Performance Computing , 1 Fusionopolis Way, #16-16 Connexis , 138632 , Singapore
| | - Shuo-Wang Yang
- Agency for Science, Technology and Research , Institute of High Performance Computing , 1 Fusionopolis Way, #16-16 Connexis , 138632 , Singapore
| | - Guo Qin Xu
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , 117543 , Singapore
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Qiu Y, Xin L, Li Y, McCrum IT, Guo F, Ma T, Ren Y, Liu Q, Zhou L, Gu S, Janik MJ, Li W. BCC-Phased PdCu Alloy as a Highly Active Electrocatalyst for Hydrogen Oxidation in Alkaline Electrolytes. J Am Chem Soc 2018; 140:16580-16588. [DOI: 10.1021/jacs.8b08356] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yang Qiu
- Department of Chemical and Biological Engineering, Iowa State University, 618 Bissell Road, Ames, Iowa 50011, United Sates
| | - Le Xin
- Department of Chemical and Biological Engineering, Iowa State University, 618 Bissell Road, Ames, Iowa 50011, United Sates
| | - Yawei Li
- Department of Chemical Engineering, Pennsylvania State University, 51 Greenberg Building, University Park, Pennsylvania 16802, United States
| | - Ian T. McCrum
- Department of Chemical Engineering, Pennsylvania State University, 51 Greenberg Building, University Park, Pennsylvania 16802, United States
| | - Fangmin Guo
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Tao Ma
- Ames Laboratory, U.S. Department of Energy, 311 Iowa State University, Ames, Iowa 50011, United States
| | - Yang Ren
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Qi Liu
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Lin Zhou
- Ames Laboratory, U.S. Department of Energy, 311 Iowa State University, Ames, Iowa 50011, United States
| | - Shuang Gu
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount St. Wichita, Kansas 67260, United States
| | - Michael J. Janik
- Department of Chemical Engineering, Pennsylvania State University, 51 Greenberg Building, University Park, Pennsylvania 16802, United States
| | - Wenzhen Li
- Department of Chemical and Biological Engineering, Iowa State University, 618 Bissell Road, Ames, Iowa 50011, United Sates
- Ames Laboratory, U.S. Department of Energy, 311 Iowa State University, Ames, Iowa 50011, United States
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39
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Cao L, Li C, Mueller T. The Use of Cluster Expansions To Predict the Structures and Properties of Surfaces and Nanostructured Materials. J Chem Inf Model 2018; 58:2401-2413. [DOI: 10.1021/acs.jcim.8b00413] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Liang Cao
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Chenyang Li
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Tim Mueller
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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Burman D, Santra S, Pramanik P, Guha PK. Pt decorated MoS 2 nanoflakes for ultrasensitive resistive humidity sensor. NANOTECHNOLOGY 2018; 29:115504. [PMID: 29408801 DOI: 10.1088/1361-6528/aaa79d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In this work, we report the fabrication of a low power, humidity sensor where platinum nanoparticles (NPs) decorated few-layered molybdenum disulphide (MoS2) nanoflakes have been used as the sensing layer. A mixed solvent was used to exfoliate the nanoflakes from the bulk powder. Then the Pt/MoS2 composites were prepared by reducing Pt NPs from chloroplatinic acid hexahydrate using a novel reduction technique using sulphide salt. The successful reduction and composite preparation were confirmed using various material characterization tools like scanning electron microscopy, atomic force microscopy, transmission electron microscopy, x-ray diffraction, x-ray photoelectron spectroscopy, Raman spectroscopy and UV-visible spectroscopy. The humidity sensors were prepared by drop-coating the Pt-decorated MoS2 on gold interdigitated electrodes and then exposed to various levels of relative humidity (RH). Composites with different weight ratios of Pt were tested and the best response was shown by the Pt/MoS2 (0.25:1) sample with a record high response of ∼4000 times at 85% RH. The response and recovery times were ∼92 s and ∼154 s respectively with repeatable behaviour. The sensor performance was found to be stable when tested over a few months. The underlying sensing mechanisms along with detailed characterization of the various composites have been discussed.
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Affiliation(s)
- Debasree Burman
- Department of Electronics & Electrical Communication Engineering, IIT Kharagpur-721302, India
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41
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Joshi U, Malkhandi S, Ren Y, Tan TL, Chiam SY, Yeo BS. Ruthenium-Tungsten Composite Catalyst for the Efficient and Contamination-Resistant Electrochemical Evolution of Hydrogen. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6354-6360. [PMID: 29431422 DOI: 10.1021/acsami.7b17970] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new catalyst, prepared by a simple physical mixing of ruthenium (Ru) and tungsten (W) powders, has been discovered to interact synergistically to enhance the electrochemical hydrogen evolution reaction (HER). In an aqueous 0.5 M H2SO4 electrolyte, this catalyst, which contained a miniscule loading of 2-5 nm sized Ru nanoparticles (5.6 μg Ru per cm2 of geometric surface area of the working electrode), required an overpotential of only 85 mV to drive 10 mA/cm2 of H2 evolution. Interestingly, our catalyst also exhibited good immunity against deactivation during HER from ionic contaminants, such as Cu2+ (over 24 h). We unravel the mechanism of synergy between W and Ru for catalyzing H2 evolution using Cu underpotential deposition, photoelectron spectroscopy, and density functional theory (DFT) calculations. We found a decrease in the d-band and an increase in the electron work function of Ru in the mixed composite, which made it bind to H more weakly (more Pt-like). The H-adsorption energy on Ru deposited on W was found, by DFT, to be very close to that of Pt(111), explaining the improved HER activity.
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Affiliation(s)
- Ubisha Joshi
- Department of Chemistry, Faculty of Science, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Souradip Malkhandi
- Department of Chemistry, Faculty of Science, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Yi Ren
- Institute of Materials Research and Engineering, Agency for Science Technology and Research , 2 Fusionopolis Way, Singapore 138634
| | - Teck Leong Tan
- Institute of High Performance Computing, Agency for Science, Technology and Research , 1 Fusionopolis Way, Singapore 138632
| | - Sing Yang Chiam
- Institute of Materials Research and Engineering, Agency for Science Technology and Research , 2 Fusionopolis Way, Singapore 138634
| | - Boon Siang Yeo
- Department of Chemistry, Faculty of Science, National University of Singapore , 3 Science Drive 3, Singapore 117543
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42
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Tsunoyama H, Yamano Y, Zhang C, Komori M, Eguchi T, Nakajima A. Size-Effect on Electrochemical Hydrogen Evolution Reaction by Single-Size Platinum Nanocluster Catalysts Immobilized on Strontium Titanate. Top Catal 2018. [DOI: 10.1007/s11244-018-0884-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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43
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Xu J, Huang Y, Cheng X, Liu T, Lu Y, Chen X, You Y, Zhang J. Interlayer-expanded and defect-rich metal dichalcogenide (MX2) nanosheets for active and stable hydrogen evolution. Inorg Chem Front 2018. [DOI: 10.1039/c8qi01064a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of interlayer-expanded and defect-rich MX2 nanosheets with abundant active edge sites are synthesized and demonstrated as efficient electrocatalysts for superior hydrogen evolution.
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Affiliation(s)
- Jun Xu
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yanyan Huang
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Xialan Cheng
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Tong Liu
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yingchun Lu
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Xing Chen
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Yu You
- School of Electronic Science & Applied Physics
- and Micro Electromechanical System Research Center of Engineering and Technology of Anhui Province Hefei University of Technology
- Hefei 230009
- P.R. China
| | - Junjun Zhang
- Department of Materials Science and Engineering
- Southern University of Science and Technology
- Shenzhen 518055
- P.R. China
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Independent tuning of size and coverage of supported Pt nanoparticles using atomic layer deposition. Nat Commun 2017; 8:1074. [PMID: 29057871 PMCID: PMC5651928 DOI: 10.1038/s41467-017-01140-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 08/22/2017] [Indexed: 11/30/2022] Open
Abstract
Synthetic methods that allow for the controlled design of well-defined Pt nanoparticles are highly desirable for fundamental catalysis research. In this work, we propose a strategy that allows precise and independent control of the Pt particle size and coverage. Our approach exploits the versatility of the atomic layer deposition (ALD) technique by combining two ALD processes for Pt using different reactants. The particle areal density is controlled by tailoring the number of ALD cycles using trimethyl(methylcyclopentadienyl)platinum and oxygen, while subsequent growth using the same Pt precursor in combination with nitrogen plasma allows for tuning of the particle size at the atomic level. The excellent control over the particle morphology is clearly demonstrated by means of in situ and ex situ X-ray fluorescence and grazing incidence small angle X-ray scattering experiments, providing information about the Pt loading, average particle dimensions, and mean center-to-center particle distance. The performance of supported nanoparticle catalysts is closely related to their size, shape and interparticle distance. Here, the authors introduce an atomic layer deposition-based strategy to independently tune the size and coverage of platinum nanoparticles with atomic-level precision.
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45
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Gao D, Guo J, Cui X, Yang L, Yang Y, He H, Xiao P, Zhang Y. Three-Dimensional Dendritic Structures of NiCoMo as Efficient Electrocatalysts for the Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:22420-22431. [PMID: 28530387 DOI: 10.1021/acsami.7b04009] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
First-row (3d) transition-metal catalysts, such as bimetallic Ni-Co, represent an emerging class of electrocatalysts for HER, but they usually suffer from a large overpotential significantly above thermodynamic demands. Here, we doped NiCo catalyst with non3d metals molybdenum (Mo) for improvement in catalyzing the hydrogen evolution reaction. The ternary catalyst was readily obtained by a one-pot process via the sequential electrodeposition of Ni, Co, and Mo precursors on titanium (Ti) support. By tailing the deposition conditions, we fabricated NiCoMo catalysts with three-dimensional dendritic structures, exhibiting large amounts of electrochemically active sites. To attain the benchmark HER current density of -10 mA cm-2, an overpotential of ∼132 mV is required in 0.1 M KOH for the Mo-doped NiCo (5 atom % Mo in bath), and they produced the decreasing in Tafel slope of ∼108 mV decade-1 exceeding those of binary NiCo alloy catalysts and other contents of Mo doping. In a synergistic effect, dopant incorporation of Mo element may provide near-optimal adsorption energies for HER intermediates promoting the process of water dissociation and hydrogen intermediates production and binding into molecular hydrogen.
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Affiliation(s)
- Di Gao
- College of Chemistry and Chemical Engineering, Chongqing University , Chongqing 400044, China
| | - Jiangna Guo
- College of Chemistry and Chemical Engineering, Chongqing University , Chongqing 400044, China
| | - Xun Cui
- College of Chemistry and Chemical Engineering, Chongqing University , Chongqing 400044, China
| | - Lin Yang
- College of Physics, Chongqing University , Chongqing 400044, China
| | - Yang Yang
- College of Chemistry and Chemical Engineering, Chongqing University , Chongqing 400044, China
| | - Huichao He
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, School of Materials Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, Sichuan, China
| | - Peng Xiao
- College of Physics, Chongqing University , Chongqing 400044, China
| | - Yunhuai Zhang
- College of Chemistry and Chemical Engineering, Chongqing University , Chongqing 400044, China
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Tan TL, Jin HM, Sullivan MB, Anasori B, Gogotsi Y. High-Throughput Survey of Ordering Configurations in MXene Alloys Across Compositions and Temperatures. ACS NANO 2017; 11:4407-4418. [PMID: 28297600 DOI: 10.1021/acsnano.6b08227] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
2D transition metal carbides and nitrides known as MXenes are gaining increasing attention. About 20 of them have been synthesized (more predicted) and their applications in fields ranging from energy storage and electromagnetic shielding to medicine are being explored. To facilitate the search for double-transition-metal MXenes, we explore the structure-stability relationship for 8 MXene alloy systems, namely, (V1-xMox)3C2, (Nb1-xMox)3C2, (Ta1-xMox)3C2, (Ti1-xMox)3C2, (Ti1-xNbx)3C2, (Ti1-xTax)3C2, (Ti1-xVx)3C2, and (Nb1-xVx)3C2, with 0 ≤ x ≤ 1, using high-throughput computations. Starting from density-functional theory calculated formation energies, we used the cluster expansion method to build quick-to-compute interactions, enabling us to scan through the formation energies of millions of alloying configurations. For the Mo-rich MXenes, (M11-xMox)3C2 (where M1: Ti, V, Nb, Ta) Mo atoms prefer to occupy the surface layers, and ordering persists to high temperatures, based on our Monte Carlo simulations. When Ti is alloyed with Nb or Ta, in the Ti-rich MXenes, Ti atoms prefer the surface layers (e.g., Ti-C-Nb-C-Ti sequence), and in the Nb- or Ta-rich MXenes, Ti occupies only one surface layer and the other two layers are Nb or Ta (e.g., Ti-C-Nb-C-Nb), exhibiting asymmetric ordering. However, alloying Ti with V results in solid solutions across all compositions. (Nb1-xVx)3C2 phase separates at lower temperatures but forms solid solutions at synthesis temperatures. Postsynthesis annealing at moderate temperatures (800 to 1000 K) increases the ordering for all the compositions. Lastly, by investigating the stability of their precursor MAX phases and surface-terminated MXenes, we discuss the synthesis possibilities of highly ordered MXenes.
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Affiliation(s)
- Teck Leong Tan
- Institute of High Performance Computing, Agency for Science, Technology and Research , 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Hong Mei Jin
- Institute of High Performance Computing, Agency for Science, Technology and Research , 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Michael B Sullivan
- Institute of High Performance Computing, Agency for Science, Technology and Research , 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Babak Anasori
- A.J. Drexel Nanomaterials Institute, and Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute, and Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States
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Mizutaru T, Marzun G, Kohsakowski S, Barcikowski S, Hong D, Kotani H, Kojima T, Kondo T, Nakamura J, Yamamoto Y. Peptide Cross-linkers: Immobilization of Platinum Nanoparticles Highly Dispersed on Graphene Oxide Nanosheets with Enhanced Photocatalytic Activities. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9996-10002. [PMID: 28282112 DOI: 10.1021/acsami.6b16765] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
For exerting potential catalytic and photocatalytic activities of metal nanoparticles (MNPs), immobilization of MNPs on a support medium in highly dispersed state is desired. In this Research Article, we demonstrated that surfactant-free platinum nanoparticles (PtNPs) were efficiently immobilized on graphene oxide (GO) nanosheets in a highly dispersed state by utilizing oligopeptide β-sheets as a cross-linker. The fluorenyl-substituted peptides were designed to form β-sheets, where metal-binding thiol groups and protonated and positively charged amino groups are integrated on the opposite sides of the surface of a β-sheet, which efficiently bridge PtNPs and GO nanosheet. In comparison to PtNP/GO composite without the peptide linker, the PtNP/peptide/GO ternary complex exhibited excellent photocatalytic dye degradation activity via electron transfer from GO to PtNP and simultaneous hole transfer from oxidized GO to the dye. Furthermore, the ternary complex showed photoinduced hydrogen evolution upon visible light irradiation using a hole scavenger. This research provides a new methodology for the development of photocatalytic materials by a bottom-up strategy on the basis of self-assembling features of biomolecules.
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Affiliation(s)
| | - Galina Marzun
- Technical Chemistry I, Center for Nanointegration Duisburg-Essen (CENIDE), and NanoEnergieTechnikZentrum (NETZ), University of Duisburg-Essen , 7 Universitätstraße, 45141 Essen, Germany
| | - Sebastian Kohsakowski
- Technical Chemistry I, Center for Nanointegration Duisburg-Essen (CENIDE), and NanoEnergieTechnikZentrum (NETZ), University of Duisburg-Essen , 7 Universitätstraße, 45141 Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I, Center for Nanointegration Duisburg-Essen (CENIDE), and NanoEnergieTechnikZentrum (NETZ), University of Duisburg-Essen , 7 Universitätstraße, 45141 Essen, Germany
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48
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Qu Y, Yang M, Chai J, Tang Z, Shao M, Kwok CT, Yang M, Wang Z, Chua D, Wang S, Lu Z, Pan H. Facile Synthesis of Vanadium-Doped Ni 3S 2 Nanowire Arrays as Active Electrocatalyst for Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5959-5967. [PMID: 28112954 DOI: 10.1021/acsami.6b13244] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ni3S2 nanowire arrays doped with vanadium(V) are directly grown on nickel foam by a facile one-step hydrothermal method. It is found that the doping can promote the formation of Ni3S2 nanowires at a low temperature. The doped nanowires show excellent electrocatalytic performance toward hydrogen evolution reaction (HER), and outperform pure Ni3S2 and other Ni3S2-based compounds. The stability test shows that the performance of V-doped Ni3S2 nanowires is improved and stabilized after thousands of linear sweep voltammetry test. The onset potential of V-doped Ni3S2 nanowire can be as low as 39 mV, which is comparable to platinum. The nanowire has an overpotential of 68 mV at 10 mA cm-2, a relatively low Tafel slope of 112 mV dec-1, good stability and high Faradaic efficiency. First-principles calculations show that the V-doping in Ni3S2 extremely enhances the free carrier density near the Fermi level, resulting in much improved catalytic activities. We expect that the doping can be an effective way to enhance the catalytic performance of metal disulfides in hydrogen evolution reaction and V-doped Ni3S2 nanowire is one of the most promising electrocatalysts for hydrogen production.
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Affiliation(s)
- Yuanju Qu
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
- Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau , Macao SAR, P. R. China
| | - Mingyang Yang
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China , Shengzhen 518055, Guangdong P. R. China
| | - Jianwei Chai
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research) , #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zhe Tang
- Department of Materials Science and Engineering, National University of Singapore , Singapore 119077
| | - Mengmeng Shao
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
| | - Chi Tat Kwok
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
- Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau , Macao SAR, P. R. China
| | - Ming Yang
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research) , #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zhenyu Wang
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China , Shengzhen 518055, Guangdong P. R. China
| | - Daniel Chua
- Department of Materials Science and Engineering, National University of Singapore , Singapore 119077
| | - Shijie Wang
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research) , #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zhouguang Lu
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China , Shengzhen 518055, Guangdong P. R. China
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
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Xu GR, Bai J, Yao L, Xue Q, Jiang JX, Zeng JH, Chen Y, Lee JM. Polyallylamine-Functionalized Platinum Tripods: Enhancement of Hydrogen Evolution Reaction by Proton Carriers. ACS Catal 2016. [DOI: 10.1021/acscatal.6b03049] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Guang-Rui Xu
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi
Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab
for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Juan Bai
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi
Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab
for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Lin Yao
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Qi Xue
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi
Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab
for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jia-Xing Jiang
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi
Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab
for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jing-Hui Zeng
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi
Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab
for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Yu Chen
- Key
Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi
Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab
for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jong-Min Lee
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
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50
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Testa G, Fontana L, Venditti I, Fratoddi I. Functionalized platinum nanoparticles with surface charge trigged by pH: synthesis, characterization and stability studies. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:1822-1828. [PMID: 28144532 PMCID: PMC5238631 DOI: 10.3762/bjnano.7.175] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/10/2016] [Indexed: 06/06/2023]
Abstract
In this work, the synthesis and characterization of functionalized platinum nanoparticles (PtNPs) have been investigated. PtNPs were obtained by a wet redox procedure using 2-diethylaminoethanethiol hydrochloride (DEA) as capping agent. By varying the Pt/thiol molar ratio, monodispersed and stable particles with diameters in the range of 3-40 nm were isolated. The amino functionality allows neutral particles to be obtained in basic water solution and positive charged nanoparticles in neutral or acidic water solution (pH 7-2), as confirmed by DLS and ζ-potential measurements. FTIR spectroscopy, FE-SEM, DLS and ζ-potential measurements confirmed the size and showed long term water stability (up to three months) of the colloidal system.
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Affiliation(s)
- Giovanna Testa
- Department of Chemistry, University Sapienza of Rome, p.le Aldo Moro 5, 00185 Rome, Italy
| | - Laura Fontana
- Department of Chemistry, University Sapienza of Rome, p.le Aldo Moro 5, 00185 Rome, Italy
| | - Iole Venditti
- Department of Chemistry, University Sapienza of Rome, p.le Aldo Moro 5, 00185 Rome, Italy
| | - Ilaria Fratoddi
- Department of Chemistry, University Sapienza of Rome, p.le Aldo Moro 5, 00185 Rome, Italy
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