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李喜德,曹德华,冯新东,张绰,邹浩然,李彬,李菊英,熊烈强,郑晓,杨军胜.Ni-Cr-Cu三元合金电极制备及其析氢性能研究[J].稀有金属材料与工程(英文),2021,50(8):2905~2912.[李喜德,Cao Dehua,Feng Xindong,Zhang Chuo,Zou Haoran,Li Bin,Li Juying,Xiong Lieqiang,Zheng Xiao and Yang Junsheng.Preparation of Ni-Cr-Cu alloy membrane electrode and its hydrogen evolution performance[J].Rare Metal Materials and Engineering,2021,50(8):2905~2912.]
Preparation of Ni-Cr-Cu alloy membrane electrode and its hydrogen evolution performance
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Received:September 01, 2020  
DOI:
Key words: Ni-Cr-Cu  preparation  hydrogen evolution  hydrogen evolution mechanism  electrochemistry
Foundation item:国家自然科学基金(51704221);武汉轻工大学杰出青年基金(2018J05)
Author NameAffiliation
李喜德,Cao Dehua,Feng Xindong,Zhang Chuo,Zou Haoran,Li Bin,Li Juying,Xiong Lieqiang,Zheng Xiao and Yang Junsheng  
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Abstract:
      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, Ni30wt%Cr-Cu ternary alloy electrode material is 6mol/L. The catalytic activity of hydrogen evolution in KOH solution is the strongest, the hydrogen evolution overpotential is only -0.13 V (vs SCE), the potential is -0.145 V (vs SCE) as the exchange current density of 10mA/cm2, and the open circuit potential (η) of the electrode material is from 0.05 to 0.02 V after 36000 s, which only increased by 0.03 V, indicating that the hydrogen evolution electrode has good chemical stability.