Abstract
The electrochemical behaviours of the hydrogen evolution reaction(HER) at electrodes prepared by composite coating of nanocrytstalline Co-Mo alloy particles formed by ball milling on nickel base has been sludied by using sleady-state polarization and ac impedance techiu ques.The microstructure and the size of the nanocrystals of Co- Mo alloy and the morphology of the composite-coating surface of the electrodes are measured by XRD, TEM and SEM. Results show that the nanocrystalline Co-Mo alloys prepared by high energy ball milling has high electrocatalytic activity for HER. The electrocatalytic activity for the HER is enhanced and the energy of activation for HER is decreased with increasing milling time. They are attributed to the increase in the real surface areas of the electrode and high proportion of active atoms on the surface of electrodes. The temperature study show that the energy of activation of electrodesorption is the same as the energy of activation of the overall reaction. The reaction rate of HER on the electrodes is proved to be controlled by electrodesorption.
Keywords
Hydrogen evolution reaction, Nanocrystalline, Co-Mo alloy, Thmposite coating, Bali milling
Publication Date
1996-02-28
Online Available Date
1996-02-28
Revised Date
1996-02-28
Received Date
1996-02-28
Recommended Citation
Weizeng Yu, Jie Ma, Yiming Chu, Huizhe Zhu, Hongjie Wang, Shuncheng Liu.
Hydrogen Evolution Reaction on Nanocrystalline Co-Mo/Ni Composite-Coated Electrodes[J]. Journal of Electrochemistry,
1996
,
2(1): Article 12.
DOI: 10.61558/2993-074X.3053
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol2/iss1/12
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Nanoscience and Nanotechnology Commons, Physical Chemistry Commons
