Effect of Mo on the Skeleton Structure and Hydrogen Evolution Performance of Ni-Mo Alloys Electrode Prepared by De-alloying

doi:10.7503/cjcu20180492

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	Effect of Mo on the Skeleton Structure and Hydrogen Evolution Performance of Ni-Mo Alloys Electrode Prepared by De-alloying
	Zhou Qi; Li Zhiyang; Wang Fan
	2019-08-10
发表期刊	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN	0251-0790
卷号	40 期号:8 页码:1717-1725
摘要	Nanoporous Ni.Mo alloys with different Mo contents were prepared by rapid solidification and deal. loying. The phase, morphology and pore size distribution of porous electrode materials were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM) and N-2 adsorption.desorption analysis. The electrocatalytic hydrogen evolution of porous electrode was tested by linear sweep voltammetry, Tafel slope, alternate current impedance and cyclic voltammetry. The results show that the hydrogen evolution overpotential of the prepared porous electrode material decreases first and then increases with the increase of Mo content at a current density of 50 mA/cm(2). The hydrogen evolution activity of Ni2.5Mo2.5 alloy is the highest, and the hydrogen evolution process on it is controlled by Volmer.Heyrovsky step. The apparent exchange current density of Ni2.5Mo2.5 alloy electrode is 0.29 mA/cm(2). After 1000 cycles of cyclic voltammetry, the polarization curve remains basically the same, and over potential increased only by 3.. 67% under a current density of 50 mA/cm(2), showing excellent hydrogen evolution stability.
关键词	Rapid quenching De-alloying Porous Ni-Mo alloy Electrocatalytic hydrogen evolution
DOI	10.7503/cjcu20180492
收录类别	SCI
语种	中文
资助项目	National Natural Science Foundation of China[51661018]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000491249800019
出版者	HIGHER EDUCATION PRESS
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/64179
专题	外国语学院
通讯作者	Zhou Qi
作者单位	Lanzhou Univ Technol, Coll Mat & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhou Qi,Li Zhiyang,Wang Fan. Effect of Mo on the Skeleton Structure and Hydrogen Evolution Performance of Ni-Mo Alloys Electrode Prepared by De-alloying[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2019,40(8):1717-1725.
APA	Zhou Qi,Li Zhiyang,&Wang Fan.(2019).Effect of Mo on the Skeleton Structure and Hydrogen Evolution Performance of Ni-Mo Alloys Electrode Prepared by De-alloying.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,40(8),1717-1725.
MLA	Zhou Qi,et al."Effect of Mo on the Skeleton Structure and Hydrogen Evolution Performance of Ni-Mo Alloys Electrode Prepared by De-alloying".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 40.8(2019):1717-1725.