Tuning the surface segregation composition of a PdCo alloy by the atmosphere for increasing electrocatalytic activity

doi:10.1039/c9se00620f

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Tuning the surface segregation composition of a PdCo alloy by the atmosphere for increasing electrocatalytic activity
	Li, TY ; Wang, R ; Yang, MH ; Zhao, SS ; Li, ZJ ; Miao, JJ ; Gao, ZD ; Gao, Y ; Song, YY
刊名	SUSTAINABLE ENERGY & FUELS
	2020
卷号	4 期号:1 页码:380-386
关键词	HYDROGEN-EVOLUTION REACTION DOPED POROUS CARBON OXYGEN REDUCTION HIGHLY EFFICIENT BIMETALLIC NANOPARTICLES CATALYTIC-ACTIVITY FACILE SYNTHESIS PD/CO ALLOY CORE-SHELL GRAPHENE
ISSN号	2398-4902
DOI	10.1039/c9se00620f
文献子类	期刊论文
英文摘要	The rational design of active sites for electrocatalysts is crucial for achieving high efficiency of electrochemical reactions. Contrary to the shape-controlled method, herein, we reported a selective segregation-etching strategy to highly increase the active sites of a bimetallic alloy as a high-performance electrocatalyst. The surface composition of the PdCo alloy was manipulated by its preferential segregation in the atmosphere according to the predictions of the density functional theory (DFT). By leaching Co atoms from the surface having a balanced composition with consecutive potential cycling in an acid solution, the surface reconstructed to show a high density of high-index Pd facets identified by Cs-corrected transmission electron microscopy. Using hydrogen evolution as a model reaction, the resulting catalyst exhibited enhanced electrocatalytic activity and outstanding long-term stability. This study provides a general principle to design a transition metal alloy with highly active sites, which has a great potential in broad areas such as batteries, fuel cells, and beyond.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33232]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201800, Peoples R China 2.Northeastern Univ, Coll Sci, Shenyang 110004, Liaoning, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Li, TY,Wang, R,Yang, MH,et al. Tuning the surface segregation composition of a PdCo alloy by the atmosphere for increasing electrocatalytic activity[J]. SUSTAINABLE ENERGY & FUELS,2020,4(1):380-386.
APA	Li, TY.,Wang, R.,Yang, MH.,Zhao, SS.,Li, ZJ.,...&Song, YY.(2020).Tuning the surface segregation composition of a PdCo alloy by the atmosphere for increasing electrocatalytic activity.SUSTAINABLE ENERGY & FUELS,4(1),380-386.
MLA	Li, TY,et al."Tuning the surface segregation composition of a PdCo alloy by the atmosphere for increasing electrocatalytic activity".SUSTAINABLE ENERGY & FUELS 4.1(2020):380-386.