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Cobalt-Vanadium Hydroxide Nanoneedles with a Free-Standing Structure as High-Performance Oxygen Evolution Reaction Electrocatalysts
Yang,Mingyang1,2; Fu,Xuelian1,3; Shao,Mengmeng2; Wang,Zhenyu1; Cao,Lujie1,2; Gu,Shuai1; Li,Minchan1; Cheng,Hua1; Li,Yuchao3; Pan,Hui2; Lu,Zhouguang1
2019-04-01
Source PublicationChemElectroChem
Volume6Issue:7Pages:2050-2055
AbstractIt is a great challenge to develop electrocatalysts with high efficiency and low cost toward oxygen evolution reaction (OER) for the electrolysis of water. Herein, novel CoV-hydroxide nanoneedle arrays with freestanding structure is successfully fabricated as new electrocatalysts for OER. Remarkably, the incorporation of V into Co hydroxide can significantly modulate the nanoneedle morphology, which results in the increase of active surface area, and augment the intrinsic activity by tuning the electronic structure. Particularly, we find that the freestanding Co hydroxide nanoneedles with 25 % Co substituted by V (CoV-HNNs) show the optimum OER catalytic activity and have a low overpotential (268 mV at 10 mA cm), a small Tafel slope (80 mV dec) and long-term stability, which are comparable to the other Co-based and V-based electrocatalysts for OER reported in literature.
KeywordCoV hydroxide nanoneedles electrocatalysts freestanding structures oxygen evolution reaction V incorporation
DOI10.1002/celc.201900415
URLView the original
Language英语
Scopus ID2-s2.0-85064345088
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Cited Times [WOS]:12   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorCheng,Hua
Affiliation1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering,University of Macau,Macao
3.School of Materials Science and Engineering,Liaocheng University,China
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Yang,Mingyang,Fu,Xuelian,Shao,Mengmeng,et al. Cobalt-Vanadium Hydroxide Nanoneedles with a Free-Standing Structure as High-Performance Oxygen Evolution Reaction Electrocatalysts[J]. ChemElectroChem,2019,6(7):2050-2055.
APA Yang,Mingyang,Fu,Xuelian,Shao,Mengmeng,Wang,Zhenyu,Cao,Lujie,Gu,Shuai,Li,Minchan,Cheng,Hua,Li,Yuchao,Pan,Hui,&Lu,Zhouguang.(2019).Cobalt-Vanadium Hydroxide Nanoneedles with a Free-Standing Structure as High-Performance Oxygen Evolution Reaction Electrocatalysts.ChemElectroChem,6(7),2050-2055.
MLA Yang,Mingyang,et al."Cobalt-Vanadium Hydroxide Nanoneedles with a Free-Standing Structure as High-Performance Oxygen Evolution Reaction Electrocatalysts".ChemElectroChem 6.7(2019):2050-2055.
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