| A Highly Efficient Fe-N-C Electrocatalyst with Atomically Dispersed FeN4 Sites for the Oxygen Reduction Reaction | |
| Jin, Xinxin1,2; Xie, Yan1; Fu, Junhong1; Zhao, Chaoyue1; Xu, Yinghao3; Lv, Yang3; Zhang, Bingsen4; Sun, Keju5; Si, Rui6; Huang, Jiahui1 | |
| Corresponding Author | Sun, Keju(kjsun@ysu.edu.cn) ; Si, Rui(sirui@mail.sysu.edu.cn) ; Huang, Jiahui(jiahuihuang@dicp.ac.cn) |
| 2021-05-10 | |
| Source Publication | CHEMCATCHEM
 |
| ISSN | 1867-3880 |
| Pages | 9 |
| Abstract | Atomically dispersed Fe-N-C electrocatalysts have displayed excellent catalytic performances towards the oxygen reduction reaction (ORR), while the identification of the genuine active sites remains a challenge. Herein, we report a Fe-N-C electrocatalyst of FeSA/HNPC featuring single-atomic FeN4 sites on hierarchically N-doped porous carbon (HNPC), which shows a very competitive ORR activity in alkaline solution even at a low electrocatalyst loading of 0.2 mg cm(-2) on the working electrode. A comparison of energy barriers in ORR reveals that the single-atomic FeN4 active sites in FeSA/HNPC existing in the form of pyrrole-N-4-Fe is more favorable than that of pyridine-N-4-Fe for the enhanced ORR activity. Understanding the nature of FeN4 active sites will greatly benefit the design of Fe-N-C electrocatalysts with highly effective ORR performances. |
| Keyword | Single atom electrocatalyst N-doped carbon Porous structure Oxygen reduction reaction Density functional theory calculations |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1002/cctc.202100132 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[21606219] ; National Natural Science Foundation of China[21773288] ; National Natural Science Foundation of China[21703235] |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000648613700001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161689 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Keju; Si, Rui; Huang, Jiahui |
| Affiliation | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Dalian Univ Technol, Dalian 116024, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.Yanshan Univ, Coll Environm & Chem Engn, Qinhuangdao 066004, Hebei, Peoples R China 6.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| Recommended Citation GB/T 7714 | Jin, Xinxin,Xie, Yan,Fu, Junhong,et al. A Highly Efficient Fe-N-C Electrocatalyst with Atomically Dispersed FeN4 Sites for the Oxygen Reduction Reaction[J]. CHEMCATCHEM,2021:9. |
| APA | Jin, Xinxin.,Xie, Yan.,Fu, Junhong.,Zhao, Chaoyue.,Xu, Yinghao.,...&Huang, Jiahui.(2021).A Highly Efficient Fe-N-C Electrocatalyst with Atomically Dispersed FeN4 Sites for the Oxygen Reduction Reaction.CHEMCATCHEM,9. |
| MLA | Jin, Xinxin,et al."A Highly Efficient Fe-N-C Electrocatalyst with Atomically Dispersed FeN4 Sites for the Oxygen Reduction Reaction".CHEMCATCHEM (2021):9. |
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