Boosting acidic water oxidation performance by constructing arrays-like nanoporous IrxRu1-xO2 with abundant atomic steps

doi:10.1007/s12274-022-4253-2

CORC > 金属研究所 > 中国科学院金属研究所

	Boosting acidic water oxidation performance by constructing arrays-like nanoporous IrxRu1-xO2 with abundant atomic steps
	Li, Junjie 2,3,4; Lian, Zan 5; Li, Qiang 6; Wang, Zhongchang 4; Liu, Lifeng 4; Deepak, Francis Leonard 4; Liu, Yanping 7; Li, Bo 5; Xu, Junyuan 1; Chen, Zuxin 4,8
刊名	NANO RESEARCH
	2022-04-07
页码	7
关键词	oxygen evolution reaction (OER) electrolysis nanoporous structure IrxRu1-xO2 defects atomic steps
ISSN号	1998-0124
DOI	10.1007/s12274-022-4253-2
通讯作者	Li, Bo(boli@imr.ac.cn) ; Xu, Junyuan(junyuanxu@dicp.ac.cn) ; Chen, Zuxin(chenzuxin@m.scnu.edu.cn)
英文摘要	The fabrication of electrocatalysts with high activity and acid stability for acidic oxygen evolution reaction (OER) is an urgent need, yet extremely challenging. Here, we report the design and successful fabrication of a high performance self-supported cogwheel arrays-like nanoporous IrxRu1-xO2 catalyst with abundant atomic steps for acidic OER using a facile alloy-spinningelectrochemical activation method that allows large-scale fabrication. The obtained IrxRu1-xO2 catalysts merely need overpotentials of 211 and 295 mV to deliver catalytic current densities of 10 and 300 mA.cm(-2) in 0.5 M H2SO4, respectively, and can sustain constant OER electrolysis for at least 140 h at a high current density of 300 mA.cm(-2). Further density functional theory (DFT) calculations uncover that such high intrinsic activities mainly originate from the largely exposed high-index atomic step planes, which markedly lower the limiting potential of the rate-determining step (RDS) of OER. These findings provide an insight into the exploration of high performance electrocatalysts, and open up an avenue for further developing the state-of-the-art Ir and/or Ru-based catalysts for large-scale practical applications.
资助项目	S&T Partnership and International S&T Cooperation Program of Shanghai Cooperation Organization[2020E01040] ; High-level Talent Project of Xinjiang Uygur Autonomous Region[2020000039] ; National Key R&D Program of China[2018YFB0104400] ; National Key R&D Program of China[2016YFB0100100] ; National Natural Science Foundation of China[62104073] ; National Natural Science Foundation of China[21825202] ; National Natural Science Foundation of China[92045302] ; National Natural Science Foundation of China[21972055] ; National Natural Science Foundation of China[21733012] ; National Natural Science Foundation of China[21573255] ; Newton Advanced Fellowships[NAF/R2/180603]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	TSINGHUA UNIV PRESS
WOS记录号	WOS:000779615200001
资助机构	S&T Partnership and International S&T Cooperation Program of Shanghai Cooperation Organization ; High-level Talent Project of Xinjiang Uygur Autonomous Region ; National Key R&D Program of China ; National Natural Science Foundation of China ; Newton Advanced Fellowships
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172942]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Bo; Xu, Junyuan; Chen, Zuxin
作者单位	1.Chinese Acad Sci, Lab Adv Spectro Electrochem & Li Ion Batteries, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 4.Int Iberian Nanotechnol Lab INL, P-4715330 Braga, Portugal 5.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 6.Univ Shanghai Sci & Technol, Sch Mech Engn, Shanghai 200093, Peoples R China 7.Cent South Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Peoples R China 8.South China Normal Univ, Inst Semicond, Guangzhou 510631, Peoples R China
推荐引用方式 GB/T 7714	Li, Junjie,Lian, Zan,Li, Qiang,et al. Boosting acidic water oxidation performance by constructing arrays-like nanoporous IrxRu1-xO2 with abundant atomic steps[J]. NANO RESEARCH,2022:7.
APA	Li, Junjie.,Lian, Zan.,Li, Qiang.,Wang, Zhongchang.,Liu, Lifeng.,...&Chen, Zuxin.(2022).Boosting acidic water oxidation performance by constructing arrays-like nanoporous IrxRu1-xO2 with abundant atomic steps.NANO RESEARCH,7.
MLA	Li, Junjie,et al."Boosting acidic water oxidation performance by constructing arrays-like nanoporous IrxRu1-xO2 with abundant atomic steps".NANO RESEARCH (2022):7.