Mesoporous Mn-Fe oxyhydroxides for oxygen evolution

doi:10.1039/d2qi00722c

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	Mesoporous Mn-Fe oxyhydroxides for oxygen evolution
	J. Y. Han; M. Z. Zhang; X. Bai; Z. Y. Duan; T. M. Tang and J. Q. Guan
	2022
发表期刊	Inorganic Chemistry Frontiers
ISSN	2052-1553
卷号	9 期号:14 页码:3559-3565
摘要	The development of high-performance and Earth-abundant catalysts is imperative for the oxygen evolution reaction (OER), and mesoporous oxyhydroxides show huge potential as advanced catalysts toward the OER due to a large specific surface area and porous structure. Here, we adopt a facile template method to synthesize bimetallic Mn-Fe oxyhydroxides. meso-Mn1Fe1Ox shows a large BET specific surface area of 212.4 m(2) g(-1) and an average pore diameter of 13.1 nm, which favor the exposure of many active sites for the reaction. meso-Mn1Fe1Ox exhibits excellent OER performance with a low overpotential of 275 mV at 10 mA cm(-2), a small Tafel slope of 52 mV dec(-1), and good long-term stability, and is superior to most Mn-based electrocatalysts. Kinetic studies indicate that Fe and Mn sites should synergistically catalyze the OER. Theoretical calculations reveal that the surface doping of Fe onto MnOOH can moderately destabilize the surface bridge O atoms and promote the generation of surface oxygen vacancies that can act as highly active sites for the OER.
DOI	10.1039/d2qi00722c
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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/181722/66834
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	J. Y. Han,M. Z. Zhang,X. Bai,et al. Mesoporous Mn-Fe oxyhydroxides for oxygen evolution[J]. Inorganic Chemistry Frontiers,2022,9(14):3559-3565.
APA	J. Y. Han,M. Z. Zhang,X. Bai,Z. Y. Duan,&T. M. Tang and J. Q. Guan.(2022).Mesoporous Mn-Fe oxyhydroxides for oxygen evolution.Inorganic Chemistry Frontiers,9(14),3559-3565.
MLA	J. Y. Han,et al."Mesoporous Mn-Fe oxyhydroxides for oxygen evolution".Inorganic Chemistry Frontiers 9.14(2022):3559-3565.

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