Synergy between isolated Fe and Co sites accelerates oxygen evolution

doi:10.1007/s12274-022-5001-3

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Synergy between isolated Fe and Co sites accelerates oxygen evolution
	T. M. Tang; Z. Y. Duan; D. Baimanov; X. Bai; X. Y. Liu; L. M. Wang; Z. L. Wang and J. Q. Guan
刊名	Nano Research
	2022
页码	6
ISSN号	1998-0124
DOI	10.1007/s12274-022-5001-3
英文摘要	Dual-metal catalysts with synergistic effect exhibit enormous potential for sustainable electrocatalytic applications and mechanism research. Compared with mono-metal-site catalysts, dual-metal-site catalysts exhibit higher efficiency for the oxygen evolution reaction (OER) due to reduced energy barrier of the process involving proton-coupled multi-electron transfer. Herein, we construct dual-metal Fe-Co sites coordinated with nitrogen in graphene (FeCo-NG), which exhibits high OER performance with onset overpotential of only 126 mV and Tafel slope of 120 mV.dec(-1), showing that the rate-determining step is controlled by the single-electron transfer step. Theoretical calculations reveal that the FeN4 site exhibits lower OER overpotential than the CoN4 site due to appropriate adsorption energy of OOH* on the former, while the O* adsorbed on the adjacent Co site could stabilize the OOH* on the FeN4 site through hydrogen bond interaction.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67148]
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	T. M. Tang,Z. Y. Duan,D. Baimanov,et al. Synergy between isolated Fe and Co sites accelerates oxygen evolution[J]. Nano Research,2022:6.
APA	T. M. Tang.,Z. Y. Duan.,D. Baimanov.,X. Bai.,X. Y. Liu.,...&Z. L. Wang and J. Q. Guan.(2022).Synergy between isolated Fe and Co sites accelerates oxygen evolution.Nano Research,6.
MLA	T. M. Tang,et al."Synergy between isolated Fe and Co sites accelerates oxygen evolution".Nano Research (2022):6.