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A seed-mediated approach to the morphology-controlled synthesis of bimetallic copper-platinum alloy nanoparticles with enhanced electrocatalytic performance for the methanol oxidation reaction
Han, Lin1,2; Cui, Penglei2; He, Hongyan2; Liu, Hui2; Peng, Zhijian1; Yang, Jun2
2015-07-15
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume286Issue:JULPages:488-494
AbstractMastery over the morphology of nanomaterials usually enables control of their properties and enhancement of their usefulness for a given application. Herein, we report a seed-mediated approach for the fabrication of bimetallic copper-platinum (CuPt) alloy nanoparticles with different morphologies. This strategy involves the first synthesis of Cu seed particles with multiple twins, and subsequent nucleation and growth of Pt metal. Then upon the Cu/Pt molar ratios in the synthesis, the rapid interdiffusion of Cu and Pt atoms results in the formation of bimetallic CuPt alloy nanoparticles with polyhedral, stellated, or dendritic morphologies. It has been found that both the morphology and electronic coupling effect between Cu and Pt components have significant effect on the electrochemical property of the alloy particles. In particular, the dendritic CuPt alloy nanoparticles display the highest specific activity for methanol oxidation reaction (MOR) due to their abundant atomic steps, edges, and corner atoms in the dendritic structure, while the polyhedral CuPt alloy particles show best carbon monoxide (CO) tolerant behavior due to the strong electronic donation effect from Cu to Pt atoms. (C) 2015 Elsevier B.V. All rights reserved.
KeywordCopper Platinum Alloy Nanoparticle Methanol Oxidation Reaction
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jpowsour.2015.04.003
Indexed BySCI
Language英语
WOS KeywordSHAPE-CONTROLLED SYNTHESIS ; OXYGEN REDUCTION REACTION ; FUEL-CELL ; NOBLE-METALS ; FORMIC-ACID ; NANOCRYSTALS ; ELECTROOXIDATION ; NANODENDRITES ; ELECTROLYTES ; CATALYSTS
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS SubjectElectrochemistry ; Energy & Fuels
WOS IDWOS:000355027400057
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19257
Collection多相复杂系统国家重点实验室
Affiliation1.China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Han, Lin,Cui, Penglei,He, Hongyan,et al. A seed-mediated approach to the morphology-controlled synthesis of bimetallic copper-platinum alloy nanoparticles with enhanced electrocatalytic performance for the methanol oxidation reaction[J]. JOURNAL OF POWER SOURCES,2015,286(JUL):488-494.
APA Han, Lin,Cui, Penglei,He, Hongyan,Liu, Hui,Peng, Zhijian,&Yang, Jun.(2015).A seed-mediated approach to the morphology-controlled synthesis of bimetallic copper-platinum alloy nanoparticles with enhanced electrocatalytic performance for the methanol oxidation reaction.JOURNAL OF POWER SOURCES,286(JUL),488-494.
MLA Han, Lin,et al."A seed-mediated approach to the morphology-controlled synthesis of bimetallic copper-platinum alloy nanoparticles with enhanced electrocatalytic performance for the methanol oxidation reaction".JOURNAL OF POWER SOURCES 286.JUL(2015):488-494.
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