Preparation of well-dispersed Pt nanoparticles on solvothermal graphene and their enhanced electrochemical properties
MATERIALS RESEARCH BULLETIN(2013)
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.
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关键词
Electrochemical properties,Nanostructures,Crystal growth,Composites
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