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.
Graphical Abstract
Keywords
oxygen reduction reaction, catalyst, nickel oxide, reduced graphene oxide, surface modification
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Publication Date
2020-04-28
Online Available Date
2019-04-09
Revised Date
2019-04-08
Received Date
2019-01-25
Recommended Citation
Shuo YAO, Tai-zhong HUANG, Rizwan HAIDER, Heng-yi FANG, Jie-mei YU, Zhan-kun JIANG, Dong LIANG, Yue SUN, Xian-xia YUAN.
NiO@rGO Supported Palladium and Silver Nanoparticles as Electrocatalysts for Oxygen Reduction Reaction[J]. Journal of Electrochemistry,
2020
,
26(2): 270-280.
DOI: 10.13208/j.electrochem.190125
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol26/iss2/15
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