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
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume40Issue:8Pages:1717-1725
AbstractNanoporous 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.
KeywordRapid quenching De-alloying Porous Ni-Mo alloy Electrocatalytic hydrogen evolution
DOI10.7503/cjcu20180492
Indexed BySCI
Language中文
Funding ProjectNational Natural Science Foundation of China[51661018]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000491249800019
PublisherHIGHER EDUCATION PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64179
Collection外国语学院
Corresponding AuthorZhou Qi
AffiliationLanzhou Univ Technol, Coll Mat & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
First Author AffilicationLanzhou University of Technology
Corresponding Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
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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.
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