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| Catalytic Performances of AuPt Alloys in-Situ Electrodeposited on Three Carbon Materials |
| Author Name | Affiliation | E-mail | | LIU Tong | MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China | | | ZHANG Jin-Qiu | MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource andEnvironment, Harbin Institute of Technology, Harbin 150090, China | zhangjinqiu@hit.edu.cn | | AN Mao-Zhong | MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource andEnvironment, Harbin Institute of Technology, Harbin 150090, China | | | YANG Pei-Xia | MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China | | | WANG Peng | School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource andEnvironment, Harbin Institute of Technology, Harbin 150090, China | |
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| Abstract: Ketjen black (KB) or graphene nanosheets (GNs) were supported on carbon paper (CP) firstly. Subseq-uently, in order to prepare air electrodes, AuPt alloys were electrodeposited on CP, CP/KB, CP/GNs substrates. It is found that the AuPt alloy particles are dispersed uniformly on the CP/GNs/AuPt air electrode, meanwhile the particle size is about 100 nm. The load mass of AuPt alloy catalyst was higher than others electrodes, meanwhile, the test of EDS exhibits that Au content and Pt content are 78.84%(n/n) and 21.16%(n/n), respectively. With a scan speed of 1 mV·s-1, the onset potential of linear sweep voltammograms (LSV) for oxygen reduction reaction (ORR) is 0.93 V in 0.1 mol·L-1 KOH solution. The CP/GNs/AuPt air electrode exhibit enhanced electrocatalytic activity and stability for ORR in comparison with the CP/AuPt and CP/KB/AuPt electrodes, which is mainly attributed to the high conductivity, large specific surface area of the GNs. GNs facilitate the uniform electrodeposition and increase the load mass of AuPt alloy. Since GNs has some catalytic activity, the synergistic effect between the GNs and AuPt alloy particles improves the catalytic performance of the CP/GNs/AuPt electrode. |
| Keywords: oxygen reduction reaction AuPt alloy graphene catalytic activity |
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| LIU Tong,ZHANG Jin-Qiu,AN Mao-Zhong,YANG Pei-Xia,WANG Peng.Catalytic Performances of AuPt Alloys in-Situ Electrodeposited on Three Carbon Materials[J].Chinese Journal of Inorganic Chemistry,2017,33(9):1587-1594. |
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