Highly active electrocatalysis of hydrogen evolution reaction in alkaline medium by Ni–P alloy: A capacitance-activity relationship

被引：0

作者：

Chao Cheng ^{[1
]}

Syed Shoaib Ahmad Shah ^{[1
]}

Tayyaba Najam ^{[1
]}

Ling Zhang ^{[1
]}

Xueqiang Qi ^{[2
]}

Zidong Wei ^{[1
]}

机构：

[1] The State Key Laboratory of Power Transmission Equipment & System Security and New Technology and College of Chemistry and Chemical Engineering, Chongqing University

[2] College of Chemistry and Chemical Engineering, Chongqing University of Technology

来源：

Journal of Energy Chemistry | 2017年 / 06期

基金：

中国国家自然科学基金;

关键词：

HER; Ni–P alloy; Capacitance; Electrodeposition;

D O I：

暂无

中图分类号：

TQ116.2 [氢气];

学科分类号：

0817 ;

摘要：

Different weights of amorphous Ni–P alloy with same P contents were electrodeposited on nickel plate with same area used as cathode for hydrogen evolution reaction(HER). The amorphous Ni–P alloy coatings were characterized for their surface morphology and composition through Scanning electron microscopy(SEM) and Energy dispersive X-ray spectroscopy(EDS) techniques, X-ray photoelectron spectroscopy(XPS) and X-ray diffraction(XRD) analysis. The electrocatalytic activity for HER in alkaline medium is determined by linear scan voltammetry(LSV) and a relationship between HER activity and capacitance is established. The capacitance varies with the loading of the Ni–P on Ni plate but the activity for HER is directly proportional to the capacitance in alkaline and vice versa. 3#Ni–P/Ni containing 3.85 mg Ni–P alloy with highest capacitance performs the best catalytic activity. This work provides direct evidence to explore the capacitance influence on the electrocatalystic activity for the HER.

引用

页码：1245 / 1251

页数：7