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- W4386859172 abstract "Copper single-atom alloy catalysts (M@Cu SAAs) have shown great promise for electrochemical CO2 reduction reaction (CO2RR). However, a clear understanding of the CO2RR process on M@Cu SAAs is still lacking. This study uses density functional theoretical (DFT) calculations to obtain a comprehensive mechanism and the origin of activity of M@Cu SAAs. The importance of the adsorption mode of M@Cu is revealed: key intermediates either adsorbed in the adjacent hollow site around Cu atoms (AD mode) or adsorbed directly on the top site of M (SE mode). AD mode generally exhibits finely tuned binding strengths of key intermediates, which significantly enhances the activity of the catalysts. Increasing the coverage of ∗CO on the M@Cu with SE mode leads to relocation of the active site, resulting in improved activity of C2 products. The insights gained in this work have significant implications for rational design strategy toward efficient CO2RR electrocatalysts." @default.
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- W4386859172 date "2023-10-01" @default.
- W4386859172 modified "2023-10-10" @default.
- W4386859172 title "Insights into the Mechanism in Electrochemical CO2 Reduction over Single-atom Copper Alloy Catalysts: A DFT Study" @default.
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- W4386859172 doi "https://doi.org/10.1016/j.isci.2023.107953" @default.
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