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Decrypting the Controlled Product Selectivity over Ag-Cu Bimetallic Surface Alloys for Electrochemical CO2 Reduction.
Wei, Daixing; Wang, Yiqing; Dong, Chung-Li; Zhang, Zhengqi; Wang, Xinyu; Huang, Yu-Cheng; Shi, Yuchuan; Zhao, Xiaoli; Wang, Jialin; Long, Ran; Xiong, Yujie; Dong, Fan; Li, Mingtao; Shen, Shaohua.
Afiliação
  • Wei D; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
  • Wang Y; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
  • Dong CL; Department of Physics, Tamkang University, New Taipei City, 25137, Taiwan.
  • Zhang Z; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
  • Wang X; Hefei National Laboratory for Physical Sciences at the Microscale, Frontiers Science Center for Planetary Exploration and Emerging Technologies, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, Chi
  • Huang YC; Department of Physics, Tamkang University, New Taipei City, 25137, Taiwan.
  • Shi Y; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
  • Zhao X; Research Center for Environmental and Energy Catalysis Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, China.
  • Wang J; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
  • Long R; Hefei National Laboratory for Physical Sciences at the Microscale, Frontiers Science Center for Planetary Exploration and Emerging Technologies, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, Chi
  • Xiong Y; Hefei National Laboratory for Physical Sciences at the Microscale, Frontiers Science Center for Planetary Exploration and Emerging Technologies, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, Chi
  • Dong F; Research Center for Environmental and Energy Catalysis Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, China.
  • Li M; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
  • Shen S; International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
Angew Chem Int Ed Engl ; 62(19): e202217369, 2023 May 02.
Article em En | MEDLINE | ID: mdl-36916416
ABSTRACT
Electrochemical CO2 reduction reaction (ECO2 RR) with controlled product selectivity is realized on Ag-Cu bimetallic surface alloys, with high selectivity towards C2 hydrocarbons/alcohols (≈60 % faradaic efficiency, FE), C1 hydrocarbons/alcohols (≈41 % FE) and CO (≈74 % FE) achieved by tuning surface compositions and applied potentials. In situ spectral investigations and theoretical calculations reveal that surface-composition-dependent d-band center could tune *CO binding strengths, regulating the *CO subsequent reaction pathways and then the product selectivity. Further adjusting the applied potentials will alter the energy of participated electrons, which leads to controlled ECO2 RR selectivity towards desired products. A predominant region map, with an indicator proposed to evaluate the thermodynamic predominance of the *CO subsequent reactions, is then provided as a reliable theoretical guidance for the controllable ECO2 RR product selectivity over bimetallic alloys.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article