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Facile Synthesis of Vanadium-Doped Ni3S2 Nanowire Arrays as Active Electrocatalyst for Hydrogen Evolution Reaction
Qu, Yuanju1,2; Yang, Mingyang1,3; Chai, Jianwei4; Tang, Zhe5; Shao, Mengmeng1; Kwok, Chi Tat1,2; Yang, Ming4; Wang, Zhenyu3; Chua, Daniel5; Wang, Shijie4; Lu, Zhouguang3; Pan, Hui1
2017-02-22
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume9Issue:7Pages:5959-5967
Abstract

Ni3S2 nanowire arrays doped with vanadium(V) are directly grown on nickel foam by a facile one-step hydrothermal method. It is found that the doping can promote the formation of Ni3S2 nanowires at a low temperature. The doped nanowires show excellent electrocatalytic performance toward hydrogen evolution reaction (HER), and outperform pure Ni3S2 and other Ni3S2-based compounds. The stability test shows that the performance of V-doped Ni3S2 nanowires is improved and stabilized after thousands of linear sweep voltammetry test. The onset potential of V-doped Ni3S2 nanowire can be as low as 39 mV, which is comparable to platinum. The nanowire has an overpotential of 68 mV at 10 mA cm(-2), a relatively low Tafel slope of 112 mV dec(-1), good stability and high Faradaic efficiency. First-principles calculations show that the V-doping in Ni3S2 extremely enhances the free carrier density near the Fermi level, resulting in much improved catalytic activities. We expect that the doping can be an effective way to enhance the catalytic performance of metal disulfides in hydrogen evolution reaction and V-doped Ni3S2 nanowire is one of the most promising electrocatalysts for hydrogen production.

KeywordHydrogen Evolution Reaction Water-splitting Electrocatalyst Transition Metal Sulfide Doping First-principles Calculation
DOI10.1021/acsami.6b13244
URLView the original
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000394829800033
PublisherAMER CHEMICAL SOC
The Source to ArticleWOS
Fulltext Access
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Cited Times [WOS]:60   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorPan, Hui
Affiliation1.Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, P. R. China
2.Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Macao SAR, P. R. China
3.Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China, Shengzhen 518055, Guangdong P. R. China
4.Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research), #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
5.Department of Materials Science and Engineering, National University of Singapore, Singapore 119077
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING;  Faculty of Science and Technology
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Qu, Yuanju,Yang, Mingyang,Chai, Jianwei,et al. Facile Synthesis of Vanadium-Doped Ni3S2 Nanowire Arrays as Active Electrocatalyst for Hydrogen Evolution Reaction[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(7):5959-5967.
APA Qu, Yuanju.,Yang, Mingyang.,Chai, Jianwei.,Tang, Zhe.,Shao, Mengmeng.,...&Pan, Hui.(2017).Facile Synthesis of Vanadium-Doped Ni3S2 Nanowire Arrays as Active Electrocatalyst for Hydrogen Evolution Reaction.ACS APPLIED MATERIALS & INTERFACES,9(7),5959-5967.
MLA Qu, Yuanju,et al."Facile Synthesis of Vanadium-Doped Ni3S2 Nanowire Arrays as Active Electrocatalyst for Hydrogen Evolution Reaction".ACS APPLIED MATERIALS & INTERFACES 9.7(2017):5959-5967.
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