兰州大学机构库 >化学化工学院
Electrochemical deposition of Au-Pt alloy particles with cauliflower-like microstructures for electrocatalytic methanol oxidation
Ye, WC(叶为春); Kou, HH; Liu, QZ; Yan, JF; Zhou, F; Wang, CM(王春明); Ye, WC (reprint author), Lanzhou Univ, Dept Chem, Tianshui Nalu 222, Lanzhou 730000, Gansu, Peoples R China.
2012-03
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY   Impact Factor & Quartile Of Published Year  The Latest Impact Factor & Quartile
ISSN0360-3199
Volume37Issue:5
AbstractAu-Pt alloy particles with cauliflower-like microstructures of varying Pt/Au ratios were electrodeposited on indium tin oxide (ITO) substrates by constant potential electrolysis at E = -0.25 V. The results of X-ray diffraction and X-ray photoelectron spectroscopy confirm that the bimetallic alloys can be obtained for different Pt/Au ratios including 4/1, 1/1 and 1/4. The formation of alloyed cauliflower-like microstructures may be the result of the fast formation of gold seeds as the core and subsequent simultaneous deposition of Au and Pt from cyclic voltammetric study. The effect of surface composition of Au-Pt alloy particles on electrocatalytic methanol oxidation were investigated in H2SO4 solution. The electrocatalytic abilities including electrochemical surface area, peak current density and the turnover number of methanol oxidation follow the order of Pt4Au1 > Pt > Pt1Au1. The results can be ascribed to that electronic effect may be prominent while bifunctional effect is insignificant for Au-Pt alloy systems because the electrocatalytic activity of Au is negligible in acidic media. Additionally, the Pt4Au1 electrode has superior kinetics of methanol electro-oxidation than monometallic Pt electrode by calculating the electron transfer coefficient (alpha). Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
KeywordElectrochemical deposition Au-Pt alloys Cauliflower-like microstructures Methanol electro-oxidation Electronic effect
Subject AreaChemistry ; Electrochemistry ; Energy & Fuels
PublisherELSEVIER
DOI10.1016/j.ijhydene.2011.11.132
Publication PlaceOXFORD
Indexed BySCIE ; EI
Language英语
First Inst
Funding Project中央高校基本科研业务费专项资金 ; 甘肃省自然科学基金计划
Project NumberNatural Science Foundation of Gansu Province, China [1107RJZA261] ; Fundamental Research Funds for the Central Universities [lzujbky-2011-25]
WOS IDWOS:000301615200014
Funding OrganizationNatural Science Foundation of Gansu Province, China [1107RJZA261]; Fundamental Research Funds for the Central Universities [lzujbky-2011-25] ; LZU ; GSSTD
SubtypeArticle
EI ID20120714765244
Department[Ye, Weichun;
Kou, Huanhuan;
Wang, Chunming] Lanzhou Univ, Dept Chem, Lanzhou 730000, Gansu, Peoples R China;
[Ye, Weichun;
Kou, Huanhuan;
Wang, Chunming] Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China;
[Liu, Qinze;
Yan, Junfeng;
Zhou, Feng] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/75950
Collection化学化工学院
Corresponding AuthorYe, WC (reprint author), Lanzhou Univ, Dept Chem, Tianshui Nalu 222, Lanzhou 730000, Gansu, Peoples R China.
Recommended Citation
GB/T 7714
Ye, WC,Kou, HH,Liu, QZ,et al. Electrochemical deposition of Au-Pt alloy particles with cauliflower-like microstructures for electrocatalytic methanol oxidation[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(5).
APA Ye, WC.,Kou, HH.,Liu, QZ.,Yan, JF.,Zhou, F.,...&Ye, WC .(2012).Electrochemical deposition of Au-Pt alloy particles with cauliflower-like microstructures for electrocatalytic methanol oxidation.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,37(5).
MLA Ye, WC,et al."Electrochemical deposition of Au-Pt alloy particles with cauliflower-like microstructures for electrocatalytic methanol oxidation".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 37.5(2012).
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