A Highly Efficient Fe-N-C Electrocatalyst with Atomically Dispersed FeN4 Sites for the Oxygen Reduction Reaction

doi:10.1002/cctc.202100132

IMR OpenIR

	A Highly Efficient Fe-N-C Electrocatalyst with Atomically Dispersed FeN4 Sites for the Oxygen Reduction Reaction
	Jin, Xinxin 1,2; Xie, Yan 1; Fu, Junhong 1; Zhao, Chaoyue 1; Xu, Yinghao 3; Lv, Yang 3; Zhang, Bingsen 4; Sun, Keju 5; Si, Rui 6; Huang, Jiahui 1
通讯作者	Sun, Keju(kjsun@ysu.edu.cn) ; Si, Rui(sirui@mail.sysu.edu.cn) ; Huang, Jiahui(jiahuihuang@dicp.ac.cn)
	2021-05-10
发表期刊	CHEMCATCHEM
ISSN	1867-3880
页码	9
摘要	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.
关键词	Single atom electrocatalyst N-doped carbon Porous structure Oxygen reduction reaction Density functional theory calculations
资助者	National Natural Science Foundation of China
DOI	10.1002/cctc.202100132
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21606219] ; National Natural Science Foundation of China[21773288] ; National Natural Science Foundation of China[21703235]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000648613700001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/161689
专题	中国科学院金属研究所
通讯作者	Sun, Keju; Si, Rui; Huang, Jiahui
作者单位	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
推荐引用方式 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.