Hydrogen Evolution on Mechanically Synthesized Particles of Tungsten- and Iron-Based Carbides: WC, Fe3C, Fe3W3C, and Fe6W6C

被引：1
作者：
Lyalina, N. V. [1 ]
Syugaev, A. V. [1 ]
Eryomina, M. A. [1 ]
Lomayeva, S. F. [1 ]
机构：
[1] Russian Acad Sci, Udmurt Fed Res Ctr, Ural Branch, Izhevsk 426067, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2023年 / 97卷 / 11期
关键词：
hydrogen evolution reaction; electrocatalytic activity; mechanical activation; mechanosynthesis; iron and tungsten carbides; EFFICIENT ELECTROCATALYST; NANOPARTICLES; PHOSPHIDES;
D O I：
10.1134/S0036024423110213
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The electrocatalytic activity of a number of mechanically activated/mechanically alloyed carbide phases of iron and tungsten and Fe3W3C and Fe6W6C bimetallic carbides in the evolution of hydrogen has been studied. Electrocatalysts have been prepared by compacting carbide particles with polyaniline as a conducting polymer. The highest activity is exhibited by Fe3C and WC nanocrystalline particles. Metallic phases in the composition of the particles slow down the rate of hydrogen evolution. Subsequent annealing of these particles transforms metallic phases to bimetallic carbides and accelerates the hydrogen evolution. The activity of the phases of Fe3W3C and Fe6W6C bimetallic carbides in the hydrogen evolution is fairly high, but they are inferior to the Fe3C and WC nanocrystalline particles.
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收藏
页码：2520 / 2528
页数：9
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