Bottom-Up Construction of Active Sites in a Cu-N-4-C Catalyst for Highly Efficient Oxygen Reduction Reaction

doi:10.1021/acsnano.8b08692

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	Bottom-Up Construction of Active Sites in a Cu-N-4-C Catalyst for Highly Efficient Oxygen Reduction Reaction
	Li, Wei 2,3; Min, Chungang 3; Tan, Feng 2,3; Li, Zhanping 4; Zhang, Bingsen 5; Si, Rui 1; Xu, Mingli 6; Liu, Weiping 2; Zhou, Liexing 3; Wei, Qingmao 2,3
刊名	ACS NANO
	2019-03-01
卷号	13 期号:3 页码:3177-3187
关键词	bottom-up fabrication single molecular building blocks ORR Cu-N-4 active sites orbital symmetry
ISSN号	1936-0851
DOI	10.1021/acsnano.8b08692
通讯作者	Yang, Xikun(yxk630@hotmail.com)
英文摘要	Bottom-up construction of efficient active sites in transition metal-nitrogen-carbon (M-N-C) catalysts for oxygen reduction reaction (ORR) from single molecular building blocks remains one of the most difficult challenges. Herein, we report a bottom-up approach to produce a highly active Cu-N-4-C catalyst with well-defined Cu-N-4 coordination sites derived from a small molecular copper complex containing Cu-N-4 moieties. The Cu-N-4 moieties were found to be covalently integrated into graphene sheets to create the Cu-N-4 active sites for ORR. Furthermore, the activity was boosted by tuning the structure of active sites. We find that the high ORR activity of the Cu-N-4-C catalyst is related to the Cu-N-4 center linked to edges of the graphene sheets, where the electronic structure of the Cu center has the right symmetry for the degenerate pi* orbital of the O-2 molecule. These findings point out the direction for the synthesis of the M-N-C catalysts at the molecular level.
资助项目	National Natural Science Foundation of China[21363012] ; National Natural Science Foundation of China[51374117] ; National Natural Science Foundation of China[11764026] ; National Natural Science Foundation of China[51764030]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000462950500045
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132575]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Xikun
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 2.Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China 3.Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Yunnan, Peoples R China 4.Tsinghua Univ, Anal Ctr, Beijing 100080, Peoples R China 5.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 6.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Li, Wei,Min, Chungang,Tan, Feng,et al. Bottom-Up Construction of Active Sites in a Cu-N-4-C Catalyst for Highly Efficient Oxygen Reduction Reaction[J]. ACS NANO,2019,13(3):3177-3187.
APA	Li, Wei.,Min, Chungang.,Tan, Feng.,Li, Zhanping.,Zhang, Bingsen.,...&Yang, Xikun.(2019).Bottom-Up Construction of Active Sites in a Cu-N-4-C Catalyst for Highly Efficient Oxygen Reduction Reaction.ACS NANO,13(3),3177-3187.
MLA	Li, Wei,et al."Bottom-Up Construction of Active Sites in a Cu-N-4-C Catalyst for Highly Efficient Oxygen Reduction Reaction".ACS NANO 13.3(2019):3177-3187.