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, W ; Min, CG ; Tan, F ; Li, ZP ; Zhang, BS ; Si, R ; Xu, ML ; Liu, WP ; Zhou, LX ; Wei, QM
刊名	ACS NANO
	2019
卷号	13 期号:3 页码:3177—3187
关键词	PEM FUEL-CELLS EFFECTIVE CORE POTENTIALS X-RAY-DIFFRACTION O-2 REDUCTION MOLECULAR CALCULATIONS CARBON MATERIALS GRAPHENE OXIDE CU COMPLEXES COPPER ELECTROCATALYSTS
ISSN号	1936-0851
DOI	10.1021/acsnano.8b08692
文献子类	期刊论文
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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31492]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
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, W,Min, CG,Tan, F,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, W.,Min, CG.,Tan, F.,Li, ZP.,Zhang, BS.,...&Yang, XK.(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, W,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.