Preparation of well-dispersed Pt nanoparticles on solvothermal graphene and their enhanced electrochemical properties

被引:13
作者
Jang, Byungchul [1 ]
Choi, Eunjin [1 ]
Piao, Yuanzhe [1 ,2 ]
机构
[1] Seoul Natl Univ, Grad Sch Convergence Sci & Technol, Dept Nano Sci & Technol, Seoul 151742, South Korea
[2] Seoul Natl Univ, Adv Inst Convergence Technol, Suwon 443270, South Korea
基金
新加坡国家研究基金会;
关键词
Electrochemical properties; Nanostructures; Crystal growth; Composites; CARBON NANOTUBE; NANOSTRUCTURED MATERIALS; METHANOL OXIDATION; OXYGEN REDUCTION; POLYOL SYNTHESIS; CATALYSTS; DURABILITY; PERFORMANCE; SUPPORT; SIZE;
D O I
10.1016/j.materresbull.2012.11.064
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Well-dispersed Pt nanoparticle-loaded graphene nanocomposites were prepared by a combination of solvothermal and seed-mediated methods. 60 wt% Pt loaded graphene nanocomposites were prepared without any aggregation of Pt nanoparticles and had high electrochemical active surface area and good activity for methanol oxidation in comparison to 60 wt% Pt loaded Vulcan XC-72 catalyst. The nanocomposite also exhibited stable electrochemical activity performance during the cycling test. These results reveal that the solvothermal graphene is a promising support material to improve the electrochemical performance of Pt catalyst for direct methanol fuel cell. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:834 / 839
页数:6
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