Unveiling the role of defects in iron oxyhydroxide for oxygen evolution

doi:10.1016/j.jcis.2022.12.128

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	Unveiling the role of defects in iron oxyhydroxide for oxygen evolution
	J. Y. Han; X. D. Niu and J. Q. Guan
	2023
发表期刊	Journal of Colloid and Interface Science
ISSN	0021-9797
卷号	635 页码:167-175
摘要	Development of earth-abundant and robust oxygen evolution reaction (OER) catalysts is imperative for cost-effective hydrogen production via water electrolysis. Herein, we report ultrafine iron (oxy)hydroxide nanoparticles with average particle size of 2.6 nm and abundant surface defects homogeneously sup-ported on oleum-treated graphite (FeOx(n)@HG-T), providing abundant active sites for the OER. The opti-mal FeOx(0.03)@HG-110 exhibits high electrocatalytic OER activity and excellent stability. Electrochemical testing results and theoretical calculations reveal that the outstanding OER activity of FeOx(0.03)@HG-110 is due to its stronger charge transfer ability and lower OER energy barrier than defect-free FeOx nanoparticles. This work demonstrates that the OER performance of oxyhydroxide-based electrocatalysts can be improved by surface defect engineering.(c) 2022 Elsevier Inc. All rights reserved.
DOI	10.1016/j.jcis.2022.12.128
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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/181722/67512
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,X. D. Niu and J. Q. Guan. Unveiling the role of defects in iron oxyhydroxide for oxygen evolution[J]. Journal of Colloid and Interface Science,2023,635:167-175.
APA	J. Y. Han,&X. D. Niu and J. Q. Guan.(2023).Unveiling the role of defects in iron oxyhydroxide for oxygen evolution.Journal of Colloid and Interface Science,635,167-175.
MLA	J. Y. Han,et al."Unveiling the role of defects in iron oxyhydroxide for oxygen evolution".Journal of Colloid and Interface Science 635(2023):167-175.

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