Hydrogen evolution on Ni/WC composite coatings

被引：0
|
作者：
Marinović, V. [1 ]
Stevanović, J. [2 ]
Jugović, B. [1 ]
Maksimović, M. [3 ]
机构：
[1] Institute of Technical Sciences, Serbian Academy of Science and Arts, Knez Mihailova 35, 11000, Belgrade, Serbia
[2] Institute of Electrochemistry, Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000, Belgrade, Serbia
[3] Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000, Belgrade, Serbia
来源：
Journal of Applied Electrochemistry | 2006年 / 36卷 / 09期
关键词：
The catalytic activity for the hydrogen evolution reaction (HER) of Ni/WC composites obtained by electrochemical deposition of nickel from a conventional Watt's bath; using two different ways of depositing the WC particles; was investigated. All the composite coatings exhibited electrocatalytic activity for the HER larger than that of pure Ni in both alkaline and acid solution. The activity increased with increasing content of WC in the coating and; in the pulsed current regime; with increasing frequency of pulsation. In addition; coatings with smaller particles incorporated exhibited higher activity than those with larger particles. At a constant potential; an order of magnitude higher current densities were obtained in some cases. © Springer 2006;
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页码：1005 / 1009
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