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

doi:10.7503/cjcu20180492

CORC > 兰州理工大学 > 兰州理工大学

	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
刊名	Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities
	2019-08-10
卷号	40 期号:8 页码:1717-1725
关键词	Alloying Binary alloys Current density Cyclic voltammetry Dealloying Electrocatalysis Electrodes High resolution transmission electron microscopy Molybdenum alloys Nickel alloys Nickel metallography Pore size Rapid quenching Rapid solidification Scanning electron microscopy Alternate currents Exchange current densities Hydrogen evolution Linear sweep voltammetry Polarization curves Porous electrodes Porous Ni Skeleton structure
ISSN号	02510790
DOI	10.7503/cjcu20180492
英文摘要	Nanoporous Ni-Mo alloys with different Mo contents were prepared by rapid solidification and dealloying. 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 N2 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/cm2. 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/cm2. 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/cm2, showing excellent hydrogen evolution stability. © 2019, Higher Education Press. All right reserved.
WOS研究方向	Chemistry
语种	中文
出版者	Higher Education Press Limited Company
WOS记录号	WOS:000491249800019
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150465]
专题	兰州理工大学
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, College of Materials and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
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]. Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities,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.Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities,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".Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities 40.8(2019):1717-1725.