CAS OpenIR  > 中科院上海应用物理研究所2011-2020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
2020
Source PublicationSUSTAINABLE ENERGY & FUELS
ISSN2398-4902
Volume4Issue:1Pages:380-386
Subtype期刊论文
AbstractThe 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.
KeywordHYDROGEN-EVOLUTION REACTION DOPED POROUS CARBON OXYGEN REDUCTION HIGHLY EFFICIENT BIMETALLIC NANOPARTICLES CATALYTIC-ACTIVITY FACILE SYNTHESIS PD/CO ALLOY CORE-SHELL GRAPHENE
DOI10.1039/c9se00620f
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33232
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Northeastern Univ, Coll Sci, Shenyang 110004, Liaoning, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
3.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201800, Peoples R China
Recommended Citation
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.
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