Preparation of Ni-Cr-Cu Alloy Membrane Electrode and Its Hydrogen Evolution Performance

被引：0

作者：

Li, Xide ^{[1
]}

Cao, Dehua ^{[1
]}

Feng, Xingdong ^{[1
]}

Zhang, Chuo ^{[1
]}

Zou, Haoran ^{[1
]}

Li, Bin ^{[1
]}

Li, Juying ^{[1
]}

Xiong, Lieqiang ^{[1
]}

Zheng, Xiao ^{[1
]}

Yang, Junsheng ^{[1
]}

机构：

[1] School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan,430023, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2021年 / 50卷 / 08期

关键词：

Nickel alloys - Potassium hydroxide - Catalyst activity - Sintering - Electrochemical electrodes - Polarization - Chemical stability - Copper alloys - Cyclic voltammetry - Electrocatalysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Ni-Cr-Cu ternary alloys electrode materials were prepared by activation reaction sintering method with tinplate, Ni powder and Cr powder as raw materials. The phase, constitute morphology and element component of the electrode were characterized by XRD, SEM, EDS. The electrocatalytic hydrogen evolution performance of alloy electrode materials was investigated by cyclic voltammetry curve, linear polarization curve, potentiodynamic polarization curve, electrochemical impedance spectrum. The results show that the Ni-Cr-Cu ternary alloy film electrode has excellent hydrogen evolution performance, and the content of Cr can improve the hydrogen evolution catalytic activity. At room temperature, the catalytic activity of hydrogen evolution of Ni30wt%Cr-Cu ternary alloy electrode material in 6 mol/L KOH solution is the strongest, the hydrogen evolution overpotential is only -0.13 V (vs RHE), the potential is -0.145 V (vs RHE) as the exchange current density of 10 mA/cm2, and the open circuit potential (η) of the electrode material is from 0.05 V to 0.02 V after 36 000 s, which only increases by 0.03 V, indicating that the hydrogen evolution electrode has good chemical stability. © 2021, Science Press. All right reserved.

引用

页码：2905 / 2912