Atomic manganese coordinated to nitrogen and sulfur for oxygen evolution

doi:10.1007/s12274-022-4293-7

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	Atomic manganese coordinated to nitrogen and sulfur for oxygen evolution
	X. Bai; L. M. Wang; B. Nan; T. M. Tang; X. D. Niu and J. Q. Guan
	2022
发表期刊	Nano Research
ISSN	1998-0124
卷号	15 期号:7 页码:6019-6025
摘要	Lack of high-efficiency, cost-efficient, and well-stocked oxygen evolution reaction (OER) electrocatalysts is a main challenge in large-scale implementation of electrolytic water. By regulating the electronic structure of isolated single-atom metal sites, high-performance transition-metal-based catalysts can be fabricated to greatly improve the OER performance. Herein, we demonstrate single-atom manganese coordinated to nitrogen and sulfur species in two-dimensional graphene nanosheets Mn-NSG (NSG means N- and S- codoped graphene) as an active and durable OER catalyst with a low overpotential of 296 mV in alkaline media, compared to that of the benchmark IrO2 catalyst. Theoretical calculations and experimental measurements reveal that the Mn-N3S sites in the graphene matrix are the most active sites for the OER due to modified electronic structure of the Mn site by three nitrogen and one sulfur atoms coordination, which show lower theoretical overpotential than the Mn-N-4 sites and over which the O-O formation step is the rate-determining step.
DOI	10.1007/s12274-022-4293-7
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66430
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,L. M. Wang,B. Nan,et al. Atomic manganese coordinated to nitrogen and sulfur for oxygen evolution[J]. Nano Research,2022,15(7):6019-6025.
APA	X. Bai,L. M. Wang,B. Nan,T. M. Tang,&X. D. Niu and J. Q. Guan.(2022).Atomic manganese coordinated to nitrogen and sulfur for oxygen evolution.Nano Research,15(7),6019-6025.
MLA	X. Bai,et al."Atomic manganese coordinated to nitrogen and sulfur for oxygen evolution".Nano Research 15.7(2022):6019-6025.

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