An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)

doi:10.1039/d1ta10022j

	An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)
	Chen, Shi 1; Wang, Changlai 1; Gao, Feiyue 1; Yang, Yang 1; Huang, Minxue 1; Tong, Huigang 1; Cheng, Zhiyu 1; Wang, Pengcheng 1; Wang, Peichen 1; Tu, Jinwei 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2022-01-12
ISSN号	2050-7488
DOI	10.1039/d1ta10022j
通讯作者	Chen, Qianwang(cqw@ustc.edu.cn)
英文摘要	Ruthenium dioxide-based electrocatalysts show the most potential in the acidic oxygen evolution reaction (OER). However, most of them show low current density, low mass activity and unsatisfactory stability under strong acidic and oxidative conditions. Herein, an indium-induced-synthesis InxRuyO2 nanoribbon electrocatalyst (named In0.17Ru0.83O2-350) was prepared, which achieves an overpotential of 177 mV at a current density of 10 mA cm(-2) in 0.5 mol L-1 sulfuric acid. The mass activity is up to 1094.90 A g(Ru)(-1) at an overpotential of 300 mV, which is among the highest for ruthenium dioxide-based catalysts. Moreover, the catalyst displays a current density up to 400 mA cm(-2), which is the highest current density in a small electrode system reported so far. It is found that indium doping can shift down the d-band center of Ru and reduce its work function, which can boost the electron transfer capacity between the catalyst surface and the reactants. Finite-element method simulations further demonstrate that the nanoribbon structure can not only expose more active sites to improve the mass activity of ruthenium and reaction current density, but also enhance the surface electric field intensity to boost the adsorption capacity of water molecules and the capacity of electron transfer, thereby accelerating the dynamics of OER.
资助项目	National Natural Science Foundation (NSFC)[51772283] ; National Key R&D 229 Program of China[2016YFA0401801] ; Hong Kong Scholars Program[XJ2019022] ; Fundamental Research Funds for the Central Universities[WK2060000032]
WOS关键词	CO2 HYDROGENATION ; WATER ; PYROCHLORE ; RU ; PERFORMANCE ; NANOSHEETS ; CATALYSTS
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000746593100001
资助机构	National Natural Science Foundation (NSFC) ; National Key R&D 229 Program of China ; Hong Kong Scholars Program ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127355]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Qianwang
作者单位	1.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shi,Wang, Changlai,Gao, Feiyue,et al. An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)[J]. JOURNAL OF MATERIALS CHEMISTRY A,2022.
APA	Chen, Shi.,Wang, Changlai.,Gao, Feiyue.,Yang, Yang.,Huang, Minxue.,...&Chen, Qianwang.(2022).An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2).JOURNAL OF MATERIALS CHEMISTRY A.
MLA	Chen, Shi,et al."An indium-induced-synthesis In0.17Ru0.83O2 nanoribbon as highly active electrocatalyst for oxygen evolution in acidic media at high current densities above 400 mA cm(-2)".JOURNAL OF MATERIALS CHEMISTRY A (2022).