Electrocatalytic properties of Fe-based bulk metallic glasses for hydrogen evolution reaction

被引：0
作者：
Shan Lin Wang
Dong-Hyun Kim
Seonghoon Yi
机构：
[1] Kyungpook National University,Department of Materials Science and Metallurgy
[2] Kyungpook National University,Department of Chemical Engineering
来源：
Korean Journal of Chemical Engineering | 2011年 / 28卷
关键词：
Fe-BMG; Electrocatalytic Activity; Hydrogen Evolution Reaction; Pretreatment;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The electrocatalytic activity of newly developed Fe-based bulk metallic glasses was evaluated by polarization and impedance measurements in deaerated 1M KOH solution at room temperature. The electrocatalytic activity as well as the glass-forming ability of the Fe73C3Si7.3B8.5P5.7Mo2.5 alloy was improved by the partial substitution of Fe with 13.5 at% Co. In hydrogen evolution reaction, the metallic glasses exhibited higher activity than the activity of G14 (Fe60B10Si10Co20) metallic glass, which has been reported to be comparable to the activity of Pt electrode. The activity was further improved after a chemical pretreatment in 1 M HF solution for 1 min due to the formation of cobalt-rich layer with a large effective surface area.
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页码：1672 / 1676
页数：4
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