Electrocatalytic properties of Ni-S-Co coating electrode for hydrogen evolution in alkaline medium

被引：29
|
作者：
Yuan Tie-chui [1 ]
Li Rui-di [1 ]
Zhou Ke-chao [1 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2007年 / 17卷 / 04期
关键词：
Ni-S-Co; amorphous alloy; electro-deposition; hydrogen evolution reaction;
D O I：
10.1016/S1003-6326(07)60170-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Amorphous Ni-S-Co alloy was prepared by means of chemical electro-deposition method on the foam nickel matrix. The surface morphology and microstructure of Ni-S-Co coatings were studied using SEM and XRD, and the electrochemical properties were tested by electrochemical methods. The results show that the coating has amorphous structure and the particles of the surface are fine with large specific surface area. The Ni-S-Co alloy is more active with lower potential for hydrogen evolution, higher exchange current density and lower activation energy compared with Ni and Ni-S electrode. Its hydrogen evolution reaction(HER) is enhanced, the size of particles of surface decreases and the surface area increases after being activated by KOH alkaline solution.
引用
收藏
页码：762 / 765
页数：4
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