Study on the Oxygen Electrodes of Alkaline Fuel Cells Effect of Dopant on the Activity of Ag/C Catalyst

Authors

Jiawei Teng, Wuhan Univ., Wuhan 430072);

Corresponding Author

Jiawei Teng

Abstract

A new kind of nonnoble catalyst for the oxygen electrodes of Alkaline Fuel Cells was investigated. The AgNiBiHg/C catalyst, which was prepared by chemical reduction, was active for the cathodic reduction of oxygen in alkaline fuel cells. It was found that the catalytic activity was improved by adding Ni, Bi, Hg to Ag/C catalyst, and the maximum activity was observed at Ag50%Ni2%Bi3%Hg3%C42%(wt%). XRD inconjunction with SEM indicated that the crystalline silver turned into amorphous in the presence of doping agents and the grain size of silver was reduced. No dramatic deactivation of the catalyst occured after 5200 hours of service.

DOI Link

https://doi.org/10.61558/2993-074X.1351

Publication Date

1997-11-28

Online Available Date

1997-11-28

Revised Date

1997-11-28

Received Date

1997-11-28

Recommended Citation

Jiawei Teng. Study on the Oxygen Electrodes of Alkaline Fuel Cells Effect of Dopant on the Activity of Ag/C Catalyst[J]. Journal of Electrochemistry, 1997 , 3(4): 428-432.
DOI: 10.61558/2993-074X.1351
Available at: https://jelectrochem.xmu.edu.cn/journal/vol3/iss4/2

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