Aged Co-Mo alloy thin film catalyst for hydrogen evolution reaction in acidic solution

被引：2
|
作者：
Kuru, Cihan [1 ,2 ]
机构：
[1] Bilecik Seyh Edebali Univ, Dept Met & Mat Engn, TR-11230 Bilecik, Turkey
[2] Bilecik Seyh Edebali Univ, Biotechnol Applicat & Res Ctr, TR-11230 Bilecik, Turkey
来源：
FUNCTIONAL MATERIALS LETTERS | 2021年 / 14卷 / 04期
关键词：
Catalyst; hydrogen evolution reaction; Co-Mo alloy; thin film; magnetron sputtering; ELECTROCATALYSTS; NI; NANOSHEETS; REDUCTION; XPS;
D O I：
10.1142/S1793604721510188
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, aged Co-Mo (3:10) alloy film has been demonstrated as an efficient and durable catalyst for hydrogen evolution reaction (HER) in acidic solution. The Co-Mo alloy films with varying Co/Mo atomic ratios have been deposited by magnetron sputtering. The catalytic activity of Mo film is outperformed by the Co-Mo alloys, among which the Co-Mo (3:10) alloy exhibits the highest HER activity with an overpotential of 310 mV at 10 mA cm(-2) current density, exchange current density of 1.74 x 10(-4) A cm(-2) and a Tafel slope of 61 mV dec(-1). Combined with the good stability provided by the surface oxide layer, the aged Co-Mo (3:10) alloy is a promising catalyst for HER in acidic solutions.
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页数：5
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