Abstract
The hydrogen evolution reaction was studied in 1 mol/L KOH solution on the hydrogen storage alloy Mm(NiCoMnAl) 5 electrode using open circuit potential decay and ac impedance technique. The reaction was found to proceed by the Volmer(discharge)-Tafel(recombination)mechanism. The measured overpotential η can be subdivided into two components η 1 and η 2 corresponding to the elementary Volmer and Tafel reaction. The Faradaic impedance was analyzed and characterized by the Volmer reaction. Then the exchange current density was evaluated . It was founded that the activity of hydrogen storage alloy electrode for the hydrogen evolution reaction was similar to that of Ni electrode.
Publication Date
1998-08-28
Online Available Date
1998-08-28
Revised Date
1998-08-28
Received Date
1998-08-28
Recommended Citation
Shigang Lu, Qun Li, Qingguo Liu, Chun Lu, Bing Dang.
The Hydrogen Evolution Reaction on the Hydrogen Storage Alloy Electrode[J]. Journal of Electrochemistry,
1998
,
4(3): Article 5.
DOI: 10.61558/2993-074X.2699
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol4/iss3/5
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