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| 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 Publication | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| ISSN | 0360-3199 |
| Volume | 45Issue:56Pages:31410-31417 |
| Abstract | The 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. |
| Keyword | CoFe Prussian blue analogues Vanadium nitride Close contact Electron interaction Oxygen evolution reaction |
| DOI | 10.1016/j.ijhydene.2020.08.274 |
| Language | 英语 |
| WOS Keyword | PEROXIDE FUEL-CELL ; WATER OXIDATION ; EFFICIENT ELECTROCATALYST ; NI FOAM ; HYDROGEN ; SUPERCAPACITORS ; NANOSTRUCTURES ; CONSTRUCTION ; NANOARRAY ; NANOCAGES |
| Funding Project | Key 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 Area | Chemistry ; Electrochemistry ; Energy & Fuels |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| Funding Organization | Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; "Strategic Priority Research Program " of Chinese Academy of Sciences |
| WOS ID | WOS:000583961000007 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/42699 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Yi; Qi, Tao |
| Affiliation | 1.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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