Synergy between isolated Fe and Co sites accelerates oxygen evolution

doi:10.1007/s12274-022-5001-3

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	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
	2022
发表期刊	Nano Research
ISSN	1998-0124
页码	6
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.
DOI	10.1007/s12274-022-5001-3
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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/181722/67148
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.

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