CAS OpenIR
Vanadium nitride based CoFe prussian blue analogues for enhanced electrocatalytic oxygen evolution
Meng, Kai1,2; Zheng, Zhilin1,3; Cao, Juntai4; Liu, Lujing1; Jia, Zhijun1; Wang, Yi1; Qi, Tao1
2020-11-13
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume45Issue:56Pages:31410-31417
AbstractThe development of efficient and stable nonprecious-metal catalysts remains a challenge for electrochemical water oxidation in practical applications. Prussian blue analogues (MM'-PBAs, A(x)M(y) [M'(CN)(6)], -nH(2)O: A = alkali metal; M/M' = transition metals), as a kind of potential electrocatalyst candidate for oxygen evolution reaction (OER), are rarely studied. Herein, by a facile coprecipitation method, CoFe-PBAs were in-situ grown on the surface of highly conductive vanadium nitride (VN) particles. The hybrid CoFe-PBAs/VN achieves the amelioration of the poor conductivity of bare CoFe-PBAs and the increase in the density of Co2+ active sites due to electron interaction. Compared with bare CoFe-PBAs (over-potential of 398 mV at 10 mA cm(-2) and Tafel slope of 78.35 mV dec(-1)), the CoFe-PBAsNN manifests a remarkably enhanced electrocatalytic activity for OER (lower overpotential of 290 mV at 10 mA cm(-2) and a smaller Tafel slope of 39.72 mV dec(-1)), which is superior among PBAs and PBAs-derived materials reported as electrocatalysts for OER. Besides, this hybrid material behaves an excellent long-term durability. High conductivity of VN and electron interaction between VN and CoFe-PBAs contribute to the promoted catalytic performance. This study provides a novel strategy using VN substrates to support PBAs-based catalysts so as to obtain highly active and stable electrocatalysts towards practical applications. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
KeywordCoFe Prussian blue analogues Vanadium nitride Close contact Electron interaction Oxygen evolution reaction
DOI10.1016/j.ijhydene.2020.08.274
Language英语
WOS KeywordPEROXIDE FUEL-CELL ; WATER OXIDATION ; EFFICIENT ELECTROCATALYST ; NI FOAM ; HYDROGEN ; SUPERCAPACITORS ; NANOSTRUCTURES ; CONSTRUCTION ; NANOARRAY ; NANOCAGES
Funding ProjectKey Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; "Strategic Priority Research Program " of Chinese Academy of Sciences[XDA21070302]
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
Funding OrganizationKey Research Program of Frontier Sciences of Chinese Academy of Sciences ; "Strategic Priority Research Program " of Chinese Academy of Sciences
WOS IDWOS:000583961000007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42699
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Yi; Qi, Tao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
4.Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada
Recommended Citation
GB/T 7714
Meng, Kai,Zheng, Zhilin,Cao, Juntai,et al. Vanadium nitride based CoFe prussian blue analogues for enhanced electrocatalytic oxygen evolution[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2020,45(56):31410-31417.
APA Meng, Kai.,Zheng, Zhilin.,Cao, Juntai.,Liu, Lujing.,Jia, Zhijun.,...&Qi, Tao.(2020).Vanadium nitride based CoFe prussian blue analogues for enhanced electrocatalytic oxygen evolution.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,45(56),31410-31417.
MLA Meng, Kai,et al."Vanadium nitride based CoFe prussian blue analogues for enhanced electrocatalytic oxygen evolution".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 45.56(2020):31410-31417.
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