N and O multi-coordinated vanadium single atom with enhanced oxygen reduction activity
文献类型：期刊论文
| 作者 | Cheng, Ling2; Huang, Hao2; Lin, Zhiyu2; Yang, Yang2; Yuan, Qing2; Hu, Lin3 ; Wang, Changlai1,2; Chen, Qianwang2,3
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| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2021-07-15 |
| 卷号 | 594 |
| 关键词 | Vanadium single atom N, O co-coordination Electrocatalyst Electronic structure Oxygen reduction reaction |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2021.03.074 |
| 通讯作者 | Chen, Qianwang(cqw@ustc.edu.cn) |
| 英文摘要 | Recently, atomically dispersed transition-metal single atom in nitrogen-doped carbon matrix as electro-catalysts has aroused general interest. However, there is no report about vanadium single atom for ORR in the literature. According to d-band center theory for transition-metals, the performance of catalysts is regulated by the electronic structure of the catalytic center which determines the intermediate adsorption kinetics. Indeed, the valence of vanadium is variable, its electron structure could be modulated by an appropriate coordination structure. Here, a novel method is developed to prepare the N and O co-coordinated vanadium single atom (V-N1O4) embedded in the carbon matrix. The catalyst displays a half-wave potential of 865 mV in base solution which surpasses 20% Pt/C, and also shows a high power density of 180 mW/cm(2) in Zn-air batteries. DFT calculations reveal that the N and O coordination configuration could regulate the electron structure and geometry of vanadium to boost the electrocatalytic activity. (C) 2021 Elsevier Inc. All rights reserved. |
| WOS关键词 | METAL-FREE ELECTROCATALYSTS ; DOPED MESOPOROUS CARBON ; SPECTROSCOPIC CHARACTERIZATION ; EFFICIENT ELECTROCATALYST ; MECHANISTIC INSIGHTS ; COMPLEXES ; NITROGEN ; CATALYSTS ; GLYCINE ; SITES |
| 资助项目 | National Natural Science Foundation[51772283] ; National Natural Science Foundation[21972145] ; National Key R&D Program of China[2016YFA0401801] ; Fundamental Research Funds for the Central Universities[WK2060000032] ; Hong Kong Scholars Program[XJ2019022] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000642275500001 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | National Natural Science Foundation ; National Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; Hong Kong Scholars Program |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122483]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Qianwang |
| 作者单位 | 1.City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Dept Mat Sci & Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Jinzhai Rd 96, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Ling,Huang, Hao,Lin, Zhiyu,et al. N and O multi-coordinated vanadium single atom with enhanced oxygen reduction activity[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2021,594. |
| APA | Cheng, Ling.,Huang, Hao.,Lin, Zhiyu.,Yang, Yang.,Yuan, Qing.,...&Chen, Qianwang.(2021).N and O multi-coordinated vanadium single atom with enhanced oxygen reduction activity.JOURNAL OF COLLOID AND INTERFACE SCIENCE,594. |
| MLA | Cheng, Ling,et al."N and O multi-coordinated vanadium single atom with enhanced oxygen reduction activity".JOURNAL OF COLLOID AND INTERFACE SCIENCE 594(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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