Improvement of oxygen evolution activity on isolated Mn sites by dual-heteroatom coordination

doi:10.1016/s1872-2067(23)64525-5

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	Improvement of oxygen evolution activity on isolated Mn sites by dual-heteroatom coordination
	X. Bai, J. Y. Han, S. Y. Chen, X. D. Niu and J. Q. Guan
	2023
发表期刊	Chinese Journal of Catalysis
ISSN	0253-9837
卷号	54 页码:212-219
摘要	The coordination of dual-heteroatom is an effective strategy to enhance the performance of oxygen evolution reaction (OER) of single-atom catalysts. Here, we synthesize Mn-SG-500 with isolated Mn sites coordinated with two sulfur and two oxygen atoms on graphene, and perform in-depth research on the structure-activity relationship for the OER. Under alkaline conditions, the Mn-SG-500 displays higher OER activity than commercial RuO2. Combining insitu structure analysis and theoretical calculations, we identify Mn-S2O2 as the catalytic active center, on which the oxidation of O to OOH is the rate-control step. The improved OER activity is attributed to the redistribution and optimization of Mn charges caused by the co-coordination of S and O. This work is helpful for further structure design and performance management of single-atom catalysts with dual-heteroatom doping.(c) 2023, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
DOI	10.1016/s1872-2067(23)64525-5
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收录类别	sci
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67336
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Bai, J. Y. Han, S. Y. Chen, X. D. Niu and J. Q. Guan. Improvement of oxygen evolution activity on isolated Mn sites by dual-heteroatom coordination[J]. Chinese Journal of Catalysis,2023,54:212-219.
APA	X. Bai, J. Y. Han, S. Y. Chen, X. D. Niu and J. Q. Guan.(2023).Improvement of oxygen evolution activity on isolated Mn sites by dual-heteroatom coordination.Chinese Journal of Catalysis,54,212-219.
MLA	X. Bai, J. Y. Han, S. Y. Chen, X. D. Niu and J. Q. Guan."Improvement of oxygen evolution activity on isolated Mn sites by dual-heteroatom coordination".Chinese Journal of Catalysis 54(2023):212-219.

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