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题名: Preparation of Pt/C via a polyol process - Investigation on carbon support adding sequence
作者: Qi, Jing1, 2;  Jiang, Luhua1;  Jing, Mingyi1, 2;  Tang, Qiwen1, 2;  Sun, Gongquan1
关键词: Particle size ;  Utilization ;  Carbon support ;  Platinum ;  Electrocatalyst ;  Fuel cell
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011-08-01
DOI: 10.1016/j.ijhydene.2011.06.022
卷: 36, 期:17, 页:10490-10501
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: To investigate the effect of carbon support adding sequence on Pt particle sizes and Pt utilizations during the polyol process of the electrocatalyst preparation, a series of Pt/C electrocatalysts (different Pt loadings, two kinds of carbon supports Vulcan XC and Black Pearls 2000) were prepared, namely, Pt/C-a (first reduced Pt ions to form Pt nanoparticles, which subsequently deposited on carbon supports) and Pt/C-b (Pt precursors were first impregnated with carbon supports, then reduced to Pt nanoparticles). The physical properties of the electrocatalysts were characterized by X-ray diffraction, transmission electron microscopy and nitrogen adsorption. The catalytic activities of the electrocatalysts toward the oxygen reduction reaction and the methanol oxidation reaction were characterized by potentiodynamic measurements. The results show that the carbon support adding sequence has significant effects on the Pt particle sizes, especially for the carbon supports with large amount of micropores, as a result, leading to different catalytic activities. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  METHANOL FUEL-CELLS ;  PARTICLE-SIZE ;  CATHODE ELECTROCATALYSTS ;  ELECTROCHEMICAL ACTIVITY ;  ALLOY ELECTROCATALYSTS ;  DISK ELECTRODE ;  CATALYSTS ;  OXIDATION ;  NANOPARTICLES
语种: 英语
WOS记录号: WOS:000295235200006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142648
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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 100049, Peoples R China

Recommended Citation:
Qi, Jing,Jiang, Luhua,Jing, Mingyi,et al. Preparation of Pt/C via a polyol process - Investigation on carbon support adding sequence[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(17):10490-10501.
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