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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 AuthorSun, Keju(kjsun@ysu.edu.cn) ; Si, Rui(sirui@mail.sysu.edu.cn) ; Huang, Jiahui(jiahuihuang@dicp.ac.cn)
2021-05-10
Source PublicationCHEMCATCHEM
ISSN1867-3880
Pages9
AbstractAtomically 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.
KeywordSingle atom electrocatalyst N-doped carbon Porous structure Oxygen reduction reaction Density functional theory calculations
Funding OrganizationNational Natural Science Foundation of China
DOI10.1002/cctc.202100132
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21606219] ; National Natural Science Foundation of China[21773288] ; National Natural Science Foundation of China[21703235]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000648613700001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161689
Collection中国科学院金属研究所
Corresponding AuthorSun, Keju; Si, Rui; Huang, Jiahui
Affiliation1.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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