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Synergistic electronic and morphological modulation on ternary Co1−xV xP nanoneedle arrays for hydrogen evolution reaction with large current density 具有协同电子结构和形貌调控功能的三元 Co1−xV xP纳米针阵列在大电流下的析氢性能研究
Mingyang Yang1,2,3; Chaoqun Shang4; Feifei Li2; Chen Liu3; Zhenyu Wang1; Shuai Gu1; Di Liu2; Lujie Cao1,2; Junjun Zhang1; Zhouguang Lu1; Hui Pan2,5
2020-10-29
Source PublicationScience China Materials
ISSN2095-8226
Abstract

It is a great challenge to prepare non-noble metal electrocatalysts toward hydrogen evolution reaction (HER) with large current density. Synergistic electronic and morphological structures of the catalyst have been considered as an effective method to improve the catalytic performance, due to the enhanced intrinsic activity and enlarged accessible active sites. Herein, we present novel ternary CoVP nano-needle arrays with modulated electronic and morphological structures as an electrocatalyst for highly efficient HER in alkaline solution. The NF@CoVP catalyst shows a remarkable catalytic ability with low overpotentials of 46 and 226 mV at current densities of 10 and 400 mA cm, respectively, as well as a small Tafel slope and superior stability. Combining the experimental and computational study, the excellent catalytic performance was attributed to the improved physical and chemical properties (conductivity and surface activity), large active surface area, and fast reaction kinetics. Furthermore, the assembled Co-V based electrolyzer (NF@CoV-HNNs(+)||NF@CoVP(−)) delivers small full-cell voltages of 1.58, 1.75, and 1.92 V at 10, 100, and 300 mA cm, respectively. Our findings provide a systematic understanding on the V-incorporation strategy to promote highly efficient ternary electrocatalysts via synergistic control of morphology and electronic structures.

KeywordHydrogen Evolution Reaction Modulated Morphology And Electronic Structures Overall Water Splitting Ternary Co1−xvxp
DOI10.1007/s40843-020-1495-x
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000585996400002
Scopus ID2-s2.0-85094871904
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorChen Liu; Zhouguang Lu; Hui Pan
Affiliation1.Department of Materials Science and Engineering,Shenzhen Key Laboratory of Hydrogen Energy,Southern University of Science and Technology,Shenzhen,518055,China
2.Institute of Applied Physics and Materials Engineering,University of Macau,Macao
3.Shenzhen Key Laboratory of Polymer Science and Technology,College of Materials Science and Engineering,Shenzhen University,Shenzhen,518060,China
4.International Academy of Optoelectronics at Zhaoqing,South China Normal University,Zhaoqing,526060,China
5.Department of Physics and Chemistry,Faculty of Science and Technology,University of Macau,Macao
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING;  Faculty of Science and Technology
Recommended Citation
GB/T 7714
Mingyang Yang,Chaoqun Shang,Feifei Li,等. Synergistic electronic and morphological modulation on ternary Co1−xV xP nanoneedle arrays for hydrogen evolution reaction with large current density 具有协同电子结构和形貌调控功能的三元 Co1−xV xP纳米针阵列在大电流下的析氢性能研究[J]. Science China Materials,2020.
APA Mingyang Yang,Chaoqun Shang,Feifei Li,Chen Liu,Zhenyu Wang,Shuai Gu,Di Liu,Lujie Cao,Junjun Zhang,Zhouguang Lu,&Hui Pan.(2020).Synergistic electronic and morphological modulation on ternary Co1−xV xP nanoneedle arrays for hydrogen evolution reaction with large current density 具有协同电子结构和形貌调控功能的三元 Co1−xV xP纳米针阵列在大电流下的析氢性能研究.Science China Materials.
MLA Mingyang Yang,et al."Synergistic electronic and morphological modulation on ternary Co1−xV xP nanoneedle arrays for hydrogen evolution reaction with large current density 具有协同电子结构和形貌调控功能的三元 Co1−xV xP纳米针阵列在大电流下的析氢性能研究".Science China Materials (2020).
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