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Wu F, Wu B, Chen L, Wang Y, Li J, Zhang Q. Dual-site OER mechanism exploration through regulating asymmetric multi-site NiOOH. NANOSCALE 2024; 16:13694-13702. [PMID: 38967458 DOI: 10.1039/d4nr01869a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Asymmetric nickel oxyhydroxide (NiOOH) possesses multi-OH and O active sites on different surfaces, (001) and (001̄), which possibly causes a complicated catalytic process. Density functional theory (DFT) calculations reveal that the unconventional dual-site mechanism (UDSM) of the oxygen evolution reaction (OER) on NiOOH (001) and (001̄) exhibits significantly lower overpotentials of 0.80 and 0.77 V, compared to 1.24 and 1.62 V for the single-site mechanism (SSM), respectively. Through chemical doping or heterojunction modifications, the constructed NiOOH@FeOOH (001̄) heterojunction reduces the thermodynamic overpotential to 0.49 V from original 0.77 V undergoing the UDSM. Although Fe/Co-doping or physical compression yield similar or slightly higher overpotentials and are not conductive to facilitating the OER process by the UDSM, all dual-site paths exhibit obviously lower overpotentials than the SSM for pristine and regulated NiOOH (001) and (001̄) from the whole viewpoint. This work identifies a more reasonable and efficient dual-site OER mechanism, which is expected to help the rational design of highly-efficient electrocatalysts.
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Affiliation(s)
- Fei Wu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 Zhongguan Road, Ningbo 315201, China.
| | - Biao Wu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 Zhongguan Road, Ningbo 315201, China.
| | - Liang Chen
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 Zhongguan Road, Ningbo 315201, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunan Wang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 Zhongguan Road, Ningbo 315201, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiejie Li
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 Zhongguan Road, Ningbo 315201, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiuju Zhang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, CAS, 1219 Zhongguan Road, Ningbo 315201, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
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Li Y, Wang B, Wang HF, Tang C. Kinetic-enhanced carbon fiber for rechargeable zinc-air batteries. J Chem Phys 2023; 158:041101. [PMID: 36725517 DOI: 10.1063/5.0135513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Metal-free catalysts are made by the elements with infinite reserve in nature and, therefore, show the potential for large-scale applications in energy devices including metal-air batteries. The construction of metal-air batteries prefers using self-supporting catalysts with favorable activity as well as fast kinetics. However, it is challenging due to the limited electropositivity of metal-free catalysts for O-O bond formation in oxygen evolution reaction (OER), scaling relationship restrictions between OER and oxygen reduction reaction, and difficulty in porosity construction on the monolith electrode surface. In this contribution, through developing a facile methodology of quenching high-temperature carbon clothes in liquid nitrogen, a self-supported carbon cloth with bifunctional active graphene skin and fast kinetics is well constructed to serve as the air cathode in metal-air batteries. Regulated oxygen species and three-dimensionally hierarchical porosity are well constructed on the carbon fiber surfaces, contributing high intrinsic activity and prominently enhanced kinetics, which leads to favorable performances in aqueous as well as flexible rechargeable zinc-air batteries. The work proposed a promising strategy in the rational design and smart synthesis of fast-kinetic monolith electrodes, which refreshes concepts and strategies of advanced material fabrication, and also bridges material science and practical energy devices.
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Affiliation(s)
- Yang Li
- Department of Experimental Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Bin Wang
- Department of Experimental Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hao-Fan Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong, China
| | - Cheng Tang
- Department of Chemical Engineering, Tsinghua University, Beijing, China
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Xie W, Deng W, Hu J, Li D, Gai Y, Li X, Zhang J, Long D, Jiang F. Construction of Ferrocene-based bimetallic CoFe-FcDA nanosheets for efficient oxygen evolution reaction. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Wang Y, Wang Y, Bai J, Lau W. Efficient Self‐Supported Bifunctional NiMo Alloy Electrocatalysts for Water Splitting in Alkaline Environment. ChemistrySelect 2022. [DOI: 10.1002/slct.202200468] [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]
Affiliation(s)
- Yechen Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science Center for Green Innovation School of Mathematics and Physics University of Science and Technology Beijing Beijing 100083 China
- Shunde Graduate School of University of Science and Technology Beijing Foshan 528000 China
| | - Yange Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science Center for Green Innovation School of Mathematics and Physics University of Science and Technology Beijing Beijing 100083 China
- Shunde Graduate School of University of Science and Technology Beijing Foshan 528000 China
| | - Jing Bai
- Center for Green Innovation School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
- Shunde Graduate School of University of Science and Technology Beijing Foshan 528000 China
| | - Woon‐Ming Lau
- Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science Center for Green Innovation School of Mathematics and Physics University of Science and Technology Beijing Beijing 100083 China
- Shunde Graduate School of University of Science and Technology Beijing Foshan 528000 China
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