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Surface Reconstruction and Phase Transition on Vanadium–Cobalt–Iron Trimetal Nitrides to Form Active Oxyhydroxide for Enhanced Electrocatalytic Water Oxidation
Dong Liu1; Haoqiang Ai2; Jielei Li1; Mingliang Fang3; Mingpeng Chen1; Di Liu1; Xinyu Du2; Pengfei Zhou1; Feifei Li1; Kin Ho Lo2; Yuxin Tang1; Shi Chen1; Lei Wang3; Guichuan Xing1; Hui Pan1,4
2020-10
Source PublicationAdvanced Energy Materials
ISSN1614-6832
Volume10Issue:45
Abstract

The sluggish oxygen evolution reaction (OER) is a pivotal process for renewable energy technologies, such as water splitting. The discovery of efficient, durable, and earth-abundant electrocatalysts for water oxidation is highly desirable. Here, a novel trimetallic nitride compound grown on nickel foam (CoVFeN @ NF) is demonstrated, which is an ultra-highly active OER electrocatalyst that outperforms the benchmark catalyst, RuO, and most of the state-of-the-art 3D transition metals and their compounds. CoVFeN @ NF exhibits ultralow OER overpotentials of 212 and 264 mV at 10 and 100 mA cm in 1 m KOH, respectively, together with a small Tafel slop of 34.8 mV dec. Structural characterization reveals that the excellent catalytic activity mainly originates from: 1) formation of oxyhydroxide species on the surface of the catalyst due to surface reconstruction and phase transition, 2) promoted oxygen evolution possibly activated by peroxo-like (O) species through a combined lattice-oxygen-oxidation and adsorbate escape mechanism, 3) an optimized electronic structure and local coordination environment owing to the synergistic effect of the multimetal system, and 4) greatly accelerated electron transfer as a result of nitridation. This study provides a simple approach to rationally design cost-efficient and highly catalytic multimetal compound systems as OER catalysts for electrochemical energy devices.

KeywordElectrocatalysts Multimetal Nitrides Oxyhydroxides Phase Transitions Surface Reconstruction Water Oxidation
DOI10.1002/aenm.202002464
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000574175400001
Scopus ID2-s2.0-85091757444
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Cited Times [WOS]:22   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorShi Chen; Lei Wang; Guichuan Xing; Hui Pan
Affiliation1.Institute of Applied Physics and Materials Engineering,University of Macau,Taipa,999078,Macao
2.Department of Electromechanical Engineering,Faculty of Science and Technology,University of Macau,Taipa,999078,Macao
3.Shenzhen Key Laboratory of Polymer Science and Technology,College of Materials Science and Engineering,Shenzhen University,Shenzhen,518060,China
4.Department of Physics and Chemistry,Faculty of Science and Technology,University of Macau,Taipa,999078,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
Dong Liu,Haoqiang Ai,Jielei Li,et al. Surface Reconstruction and Phase Transition on Vanadium–Cobalt–Iron Trimetal Nitrides to Form Active Oxyhydroxide for Enhanced Electrocatalytic Water Oxidation[J]. Advanced Energy Materials,2020,10(45).
APA Dong Liu,Haoqiang Ai,Jielei Li,Mingliang Fang,Mingpeng Chen,Di Liu,Xinyu Du,Pengfei Zhou,Feifei Li,Kin Ho Lo,Yuxin Tang,Shi Chen,Lei Wang,Guichuan Xing,&Hui Pan.(2020).Surface Reconstruction and Phase Transition on Vanadium–Cobalt–Iron Trimetal Nitrides to Form Active Oxyhydroxide for Enhanced Electrocatalytic Water Oxidation.Advanced Energy Materials,10(45).
MLA Dong Liu,et al."Surface Reconstruction and Phase Transition on Vanadium–Cobalt–Iron Trimetal Nitrides to Form Active Oxyhydroxide for Enhanced Electrocatalytic Water Oxidation".Advanced Energy Materials 10.45(2020).
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