Ag Doped Au44 Nanoclusters for Electrocatalytic Conversion of CO2 to CO |
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Authors: | Shisi Tang Jiayu Xu Dr Xu Liu Prof Yan Zhu |
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Institution: | School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093 China |
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Abstract: | A novel Ag doped Au44(C10H9)28 nanocluster (C10H10=1-ethynyl-2,4-dimethylbenzene) was synthesized, that is, Ag4+xAu40-x(C10H9)28 (x≤6), where four Ag positions located in the surface staple of the cluster have been determined, while six Au/Ag co-occupying positions have been found in the metal core of the cluster. The electronic configuration of Au44(C10H9)28 cluster is significantly disturbed by doping Ag atoms, hence promoting the electron transport capability. For the two-electron conversion reaction of CO2 to CO in electrochemical reduction of CO2, Ag doped Ag4+xAu40-x(C10H9)28 catalyst exhibited higher effective activity and long-term stability than its counterpart Au44(C10H9)28 catalyst. |
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Keywords: | cluster CO2 doping reconstruction structure |
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