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Journal of Electrochemistry ›› 2020, Vol. 26 ›› Issue (2): 270-280.  doi: 10.13208/j.electrochem.190125

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NiO@rGO Supported Palladium and Silver Nanoparticles as Electrocatalysts for Oxygen Reduction Reaction

YAO Shuo1,2, HUANG Tai-zhong1,*(), HAIDER Rizwan2, FANG Heng-yi1, YU Jie-mei1, JIANG Zhan-kun1, LIANG Dong1, SUN Yue1, YUAN Xian-xia2,*()   

  1. 1. Shandong Provincial Key Laboratory of Fluorine Chemistry Material, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
    2. Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-01-25 Revised:2019-04-08 Online:2020-04-28 Published:2019-04-09
  • Contact: HUANG Tai-zhong,YUAN Xian-xia E-mail:chm_huangtz@ujn.edu.cn;yuanxx@sjtu.edu.cn

Abstract:

For pervasive applications of fuel cells, highly efficient and economical materials are required to replace Pt-based catalysts for oxygen reduction reaction (ORR). In this study, the NiO@rGO, Pd-NiO@rGO and Ag-NiO@rGO nanoparticles were synthesized, and their catalytic performances toward ORR were investigated. The results revealed that all the three materials were capable of catalyzing ORR, but both the Pd-NiO@rGO and Ag-NiO@rGO showed the better performances compared with the NiO@rGO in terms of the reaction pathway being 4-electron process, the increases of the onset potential and the intermediate yielding rate, as well as the extended stability. Moreover, the effect of Pd modification was superior to that of Ag.

Key words: oxygen reduction reaction, catalyst, nickel oxide, reduced graphene oxide, surface modification

CLC Number: