Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis

doi:10.1002/adfm.202205654

CORC > 金属研究所 > 中国科学院金属研究所

	Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis
	Tong, Yueyu 8,9; Liu, Jiaxin 9; Wang, Liqun 7; Su, Bing-Jian 6; Wu, Kuang-Hsu 5; Juang, Jenh-Yih 6; Hou, Feng 9; Yin, Lichang 3,4; Dou, Shi Xue 8; Liu, Jian 1,2
刊名	ADVANCED FUNCTIONAL MATERIALS
	2022-08-15
页码	11
关键词	multifunctional electrocatalysts oxygen reduction reactions remote manipulations single atom alloys water splitting
ISSN号	1616-301X
DOI	10.1002/adfm.202205654
通讯作者	Hou, Feng(houf@tju.edu.cn) ; Yin, Lichang(lcyin@imr.ac.cn) ; Liu, Jian(jian.liu@surrey.ac.uk) ; Liang, Ji(liangji@tju.edu.cn)
英文摘要	Encapsulating metal-based catalysts inside carbon sheaths is a frequently-adopted strategy to enhance their durability under various harsh situations and improve their catalytic activity simultaneously. Such carbon encapsulation, however, imposes significant complications for directly modifying materials' surface atomic/electronic configurations, fundamentally impeding the accurate tuning of their catalytic capabilities. Herein, a universal single-atom alloy (SAA) strategy is reported to indirectly yet precisely manipulate the surface electronic structure of carbon-encapsulated electrocatalysts. By versatilely constructing a SAA core inside an N-doped carbon sheath, material's electrocatalytic capability can be flexibly tuned. The one with Ru-SAA cores serves as an excellent bifunctional electrocatalyst for oxygen/hydrogen evolution, exhibiting minimal cell voltage of 1.55 V (10 mA cm(-2)) and outstanding mass activity of 1251 mA mgRu-1${\rm{g}}_{{\rm{Ru}}}<^>{ - 1}$ for overall water splitting, while the one with Ir-SAA cores possesses superior oxygen reduction activity with a half-wave potential of 919 mV. Density functional theory calculations reveal that the doped atoms can simultaneously optimize the adsorption of protons (H) and oxygenated intermediates (OH, O, and OOH) to achieve the remarkable thermoneutral hydrogen evolution and enhanced oxygen evolution. This work thus demonstrates a versatile strategy to precisely modify the surface electronic properties of carbon-shielded materials for optimized performances.
资助项目	Natural Science Foundation of China[22179093] ; Natural Science Foundation of China[21905202] ; Natural Science Foundation of China[51972312] ; Natural Science Foundation of Liaoning Province, China[2020-MS-003] ; Australian Research Council (ARC)[DP200100365] ; Australian Research Council (ARC)[DP210102215] ; Electron Microscopy Center in the University of Wollongong
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000840685500001
资助机构	Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province, China ; Australian Research Council (ARC) ; Electron Microscopy Center in the University of Wollongong
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174479]
专题	金属研究所_中国科学院金属研究所
通讯作者	Hou, Feng; Yin, Lichang; Liu, Jian; Liang, Ji
作者单位	1.Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England 2.Univ Surrey, DICP Surrey Joint Ctr Future Mat, Dept Chem & Proc Engn, Guildford GU2 7XH, Surrey, England 3.Huaibei Normal Univ, Dept Phys & Elect Informat, Huaibei 235000, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 5.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia 6.Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30076, Taiwan 7.Tianjin Normal Univ, Coll Phys & Mat Sci, Appl Phys Dept, Tianjin 300387, Peoples R China 8.Univ Wollongong, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2500, Australia 9.Tianjin Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300350, Peoples R China
推荐引用方式 GB/T 7714	Tong, Yueyu,Liu, Jiaxin,Wang, Liqun,et al. Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis[J]. ADVANCED FUNCTIONAL MATERIALS,2022:11.
APA	Tong, Yueyu.,Liu, Jiaxin.,Wang, Liqun.,Su, Bing-Jian.,Wu, Kuang-Hsu.,...&Liang, Ji.(2022).Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis.ADVANCED FUNCTIONAL MATERIALS,11.
MLA	Tong, Yueyu,et al."Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis".ADVANCED FUNCTIONAL MATERIALS (2022):11.