Highly-efficient CoRuO<sub>x</sub> nanocatalysts for acidic oxygen evolution: The merit of optimum ordering degree of carbon nanotube support

doi:10.1016/j.partic.2024.02.001

IMR OpenIR

	Highly-efficient CoRuO_x nanocatalysts for acidic oxygen evolution: The merit of optimum ordering degree of carbon nanotube support
	Li, Wenwen 1,2; Wang, Yanni 1; Zhao, Zhenzhen 1; Liu, Meiqi 1; Liang, Qing 1; Liu, Yuhua 1; Liu, Fuxi 1; Jiang, Zhou 1; Zou, Xu 1; Zhang, Bingsen 2; Zhang, Wei 1
通讯作者	Zou, Xu(zoux@jlu.edu.cn) ; Zhang, Bingsen(bszhang@imr.ac.cn) ; Zhang, Wei(weizhang@jlu.edu.cn)
	2024-07-01
发表期刊	PARTICUOLOGY
ISSN	1674-2001
卷号	90 页码:470-477
摘要	Hydrogen production from proton exchange membrane water electrolysis is constrained by the sluggish kinetics of the anodic oxygen evolution reaction. RuO2 has attracted considerable attention due to its low reaction overpotential, but its inferior stability remains a major challenge. Herein, a strategy is proposed to enhance the catalytic activity and stability of CoRuOx nanoparticles by doping Co and regulating the ordering degree of carbon nanotubes (CNTs) by air annealing. It was found that the CoRuOx@CNTs-30 0 catalyst exhibited the best catalytic activity and stability when the annealing temperature was 300 degrees C. At the current density of 10 mA cm(-2), the overpotential of this catalyst was only 201 mV, which was nearly 100 mV lower than that of commercial RuO2 (300 mV). Surprisingly, there was no significant increase in the overpotential when tested at a current density of 10 mA cm(-2) for 50 h. The density functional theory calculations indicate that the high activity of the catalyst is due to the electronic coupling of CoRuOx nanoparticles and CNTs, and that the introduction of Co and CNTs improves the electronic structure and solvation energies of the Ru in the active site, dramatically increasing the structural stability. (c) 2024 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词	Electrocatalysis RuO2 CNTs Oxygen evolution reaction
资助者	National Natural Science Foundation of China
DOI	10.1016/j.partic.2024.02.001
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52101256] ; National Natural Science Foundation of China[51872115]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Chemical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001203657000001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185613
专题	中国科学院金属研究所
通讯作者	Zou, Xu; Zhang, Bingsen; Zhang, Wei
作者单位	1.Jilin Univ, Jilin Prov Int Cooperat Key Lab High Efficiency Cl, Key Lab Automobile Mat MOE, Sch Mat Sci & Engn,Electron Microscopy Ctr,Int Ctr, Changchun 130012, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenwen,Wang, Yanni,Zhao, Zhenzhen,et al. Highly-efficient CoRuO_x nanocatalysts for acidic oxygen evolution: The merit of optimum ordering degree of carbon nanotube support[J]. PARTICUOLOGY,2024,90:470-477.
APA	Li, Wenwen.,Wang, Yanni.,Zhao, Zhenzhen.,Liu, Meiqi.,Liang, Qing.,...&Zhang, Wei.(2024).Highly-efficient CoRuO_x nanocatalysts for acidic oxygen evolution: The merit of optimum ordering degree of carbon nanotube support.PARTICUOLOGY,90,470-477.
MLA	Li, Wenwen,et al."Highly-efficient CoRuO_x nanocatalysts for acidic oxygen evolution: The merit of optimum ordering degree of carbon nanotube support".PARTICUOLOGY 90(2024):470-477.