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Experimental and density functional theory studies on PtPb/C bimetallic electrocatalysts for methanol electrooxidation reaction in alkaline media
Jiang, Qian1,2; Jiang, Luhua1; Qi, Jing1,2; Wang, Suli1; Sun, Gongquan1
关键词Alkaline Methanol Electrooxidat Ion Platinum-lead Electrocatalyst Dft
刊名ELECTROCHIMICA ACTA
2011-07-15
DOI10.1016/j.electacta.2011.04.135
56期:18页:6431-6440
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]EFFECTIVE CORE POTENTIALS ; PLATINUM-ELECTRODES ; FORMIC-ACID ; FUEL-CELLS ; MOLECULAR CALCULATIONS ; OXIDATION ; NANOPARTICLES ; PT(111) ; PB ; ADSORPTION
英文摘要Carbon-supported bimetallic Pt(m)Pb(1) (m = 1, 2, 3) electrocatalysts with different Pt/Pb atomic ratios were synthesized by a polyol method. The X-ray diffraction results reveal that a PtPb alloy formed in the Pt(m)Pb(1)/C electrocatalysts. TEM images show that the PtPb nanoparticles distribute uniformly on the carbon support, and are about 4-5 nm in size. The Pt(m)Pb(1)/C bimetallic catalysts show superior activities toward methanol electrooxidation reaction (MOR) than the Pt/C in alkaline media. Both CO stripping measurements and density functional theory studies reveal that CO adsorption decreased significantly on the Pt(m)Pb(1)/C bimetallic catalysts compared with on pure Pt, which may offer an explanation for the enhanced MOR activity of the Pt(m)Pb(1)/C bimetallic catalysts. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000293306100025
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142429
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
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Jiang, Qian,Jiang, Luhua,Qi, Jing,et al. Experimental and density functional theory studies on PtPb/C bimetallic electrocatalysts for methanol electrooxidation reaction in alkaline media[J]. ELECTROCHIMICA ACTA,2011,56(18):6431-6440.
APA Jiang, Qian,Jiang, Luhua,Qi, Jing,Wang, Suli,&Sun, Gongquan.(2011).Experimental and density functional theory studies on PtPb/C bimetallic electrocatalysts for methanol electrooxidation reaction in alkaline media.ELECTROCHIMICA ACTA,56(18),6431-6440.
MLA Jiang, Qian,et al."Experimental and density functional theory studies on PtPb/C bimetallic electrocatalysts for methanol electrooxidation reaction in alkaline media".ELECTROCHIMICA ACTA 56.18(2011):6431-6440.
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