镍锡粉末合金在碱溶液电化学析氢过程中的催化性能及稳定性

Q4 Chemistry
O. Vrublevskaya, N. Y. Kareva, A. D. Kalesnik, A. Kudaka, Batnasan Bolormaa, G. Sevjidsuren
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引用次数: 0

摘要

镍含量为24.4 ~ 78.5 at的镍锡粉末合金。%,从30.6%到55.1 %。分别用化学方法和电化学方法合成了三聚吡啶,作为碱溶液中氢电化学还原(HER)的催化剂。结果表明,化学合成的粉末比电化学合成的粉末具有更大的催化活性。Ni24.4Sn75.6粉末合金的表面积最大。结果表明,化学合成的粉末的催化性能以Ni24.4Sn75.6 < Ni78.5Sn21.5 < Ni的顺序递增。电化学获得的合金作为HER催化剂效率不高。结果表明,与Ni和Ni78.5Sn21.5合金相比,Ni24.4Sn75.6合金在碱溶液中具有更大的催化活性表面积。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Catalytic properties and stability of nickel–tin powder alloys in the process of electrochemical hydrogen evolution from alkali solution
Ni–Sn powder alloys with a nickel content from 24.4 to 78.5 at.% and from 30.6 to 55.1 at.%, respectively, were synthesized chemically and electrochemically for the use as catalysts for the hydrogen electrochemical reduction (HER) in alkali solution. It was established that the catalytically active surface area of chemically synthesized powders was larger in comparison with electrochemically obtained ones. Ni24.4Sn75.6 powder alloy has the largest surface area. It was found that catalytic properties of chemically synthesized powders increased in the row Ni24.4Sn75.6 < Ni78.5Sn21.5 < Ni. Electrochem ically obtained alloys are inefficient as HER catalysts. It was found that Ni24.4Sn75.6 alloy is characterized by the greater re tention of catalytically active surface area during exploitation in alkali solution in comparison with Ni and Ni78.5Sn21.5 alloy. 
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来源期刊
CiteScore
0.30
自引率
0.00%
发文量
38
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