淡江大學機構典藏:Item 987654321/125726
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/125726


    Title: Decrypting the controlled product selectivity over Ag-Cu bimetallic surface alloys for electrochemical CO2 reduction
    Authors: Daixing Wei, Yiqing Wang, Prof. Chung-Li Dong, Zhengqi Zhang, Xinyu Wang, Dr. Yu-Cheng Huang, Yuchuan Shi, Xiaoli Zhao, Jialin Wang, Prof. Ran Long, Prof. Yujie Xiong, Prof. Fan Dong, Prof. Mingtao Li, Prof. Shaohua Shen
    Date: 2023-03-14
    Issue Date: 2024-07-31 12:10:36 (UTC+8)
    Publisher: Wiley-VCH
    Abstract: Electrochemical CO2 reduction reaction (ECO2RR) 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 ECO2RR 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 ECO2RR product selectivity over bimetallic alloys.
    Relation: Angewandte Chemie 62(19), e202217369
    DOI: 10.1002/anie.202217369
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Journal Article

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