High entropy alloy as a highly active and stable electrocatalyst for hydrogen evolution reaction

被引：264

作者：

Zhang, Guoliang ^{[1
]}

Ming, Kaisheng ^{[2
]}

Kang, Jianli ^{[1
]}

Huang, Qin ^{[1
]}

Zhang, Zhijia ^{[1
]}

Zheng, Xuerong ^{[3
]}

Bi, Xiaofang ^{[2
]}

机构：

[1] Tianjin Polytech Univ, Sch Mat Sci & Engn, Tianjin Key Lab Adv Fibers & Energy Storage, State Key Lab Separat Membrane & Membrane Proc, Tianjin 300387, Peoples R China

[2] Beihang Univ BUAA, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China

[3] Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2018年 / 279卷

关键词：

High entropy alloys; Electrocatalyst; Hydrogen evolution reaction; Water splitting; Corrosion resistance; ELECTRODES; STABILITY; CATHODES;

D O I：

10.1016/j.electacta.2018.05.035

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Transition metals and their alloys are expected to have high catalytic activities for hydrogen evolution reaction due to their partially filled d orbitals fitting for the gain and loss of electrons. The poor corrosion resistance, however, limits their applications as electrocatalysts in acidic and alkaline electrolytes. In this work, we report that high entropy alloy (HEA, Ni20Fe20Mo10Co35Cr15) with high corrosion resistance can be functioned as highly active and stable electrocatalyst for the hydrogen evolution reaction in both acidic and basic electrolytes. The HEA requires an overpotential of only 107 mV in acidic solutions and 172 mV in the basic solution at current density of 10 mA cm(-2), which are much better than that of the dual-phase counterpart and even comparable to that of Pt sheet and most reported nanostructured noble-metal-free catalysts, for hydrogen evolution reaction in both acidic and alkaline solutions. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：19 / 23

页数：5

共 31 条

[21] TRANSITION METAL-BASED CATHODES FOR HYDROGEN EVOLUTION IN ALKALINE-SOLUTION - ELECTROCATALYSIS ON NICKEL-BASED TERNARY ELECTROLYTIC CODEPOSITS [J].