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Multi-Phase Heterostructure of CoNiP/CoxP for Enhanced Hydrogen Evolution Under Alkaline and Seawater Conditions by Promoting H2O Dissociation
Dong Liu1; Haoqiang Ai2; Mingpeng Chen1; Pengfei Zhou1; Bowen Li1; Di Liu1; Xinyu Du2; Kin Ho Lo2; Kar-Wei Ng1; Shuang-Peng Wang1; Shi Chen1; Guichuan Xing1; Jinsong Hu3; Hui Pan1,4
2021-04-28
Source PublicationSmall
ISSN1613-6810
Volume17Issue:17Pages:2007557
Other Abstract

Hydrogen evolution reaction (HER) is a key step for electrochemical energy conversion and storage. Developing well defined nanostructures as noble-metal-free electrocatalysts for HER is promising for the application of hydrogen technology. Herein, it is reported that 3D porous hierarchical CoNiP/CoP multi-phase heterostructure on Ni foam via an electrodeposition method followed by phosphorization exhibits ultra-highly catalytic activity for HER. The optimized CoNiP/CoP multi-phase heterostructure achieves an excellent HER performance with an ultralow overpotential of 36 mV at 10 mA cm, superior to commercial Pt/C. Importantly, the multi-phase heterostructure shows exceptional stability as confirmed by the long-term potential cycles (30,000 cycles) and extended electrocatalysis (up to 500 h) in alkaline solution and natural seawater. Experimental characterizations and DFT calculations demonstrate that the strong electronic interaction at the heterointerface of CoNiP/CoP is achieved via the electron transfer from CoNiP to the heterointerface, which directly promotes the dissociation of water at heterointerface and desorption of hydrogen on CoNiP. These findings may provide deep understanding on the HER mechanism of heterostructure electrocatalysts and guidance on the design of earth-abundant, cost-effective electrocatalysts with superior HER activity for practical applications.

DOI10.1002/smll.202007557
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000629936800001
PublisherWILEY-V C H VERLAG GMBH,POSTFACH 101161, 69451 WEINHEIM, GERMANY
Scopus ID2-s2.0-85102651148
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorShuang-Peng Wang; Shi Chen; Guichuan Xing; Hui Pan
Affiliation1.Institute of Applied Physics and Materials Engineering, University of Macau, Macao, 999078, Macao
2.Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Macao, 999078, Macao
3.CAS Key Laboratory of Molecular Nanostructure and Nanotechnology Institute of Chemistry, Chinese Academy of Sciences, Beijing, 2 North first Street, Zhongguancun, 100190, China
4.Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao, 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,Mingpeng Chen,et al. Multi-Phase Heterostructure of CoNiP/CoxP for Enhanced Hydrogen Evolution Under Alkaline and Seawater Conditions by Promoting H2O Dissociation[J]. Small,2021,17(17):2007557.
APA Dong Liu,Haoqiang Ai,Mingpeng Chen,Pengfei Zhou,Bowen Li,Di Liu,Xinyu Du,Kin Ho Lo,Kar-Wei Ng,Shuang-Peng Wang,Shi Chen,Guichuan Xing,Jinsong Hu,&Hui Pan.(2021).Multi-Phase Heterostructure of CoNiP/CoxP for Enhanced Hydrogen Evolution Under Alkaline and Seawater Conditions by Promoting H2O Dissociation.Small,17(17),2007557.
MLA Dong Liu,et al."Multi-Phase Heterostructure of CoNiP/CoxP for Enhanced Hydrogen Evolution Under Alkaline and Seawater Conditions by Promoting H2O Dissociation".Small 17.17(2021):2007557.
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