Hollow graphitic carbon spheres for Pt electrocatalyst support in direct methanol fuel cell

被引:32
作者
Bang, Jin Ho [1 ]
机构
[1] Hanyang Univ, Dept Appl Chem, Ansan 426791, Kyeonggi Do, South Korea
关键词
Hollow graphitic carbon; Fuel cell; Electrocatalyst; Carbon support; Methanol oxidation; MESOPOROUS CARBON; POROUS CARBONS; NANOPARTICLES; NANOTUBES; FABRICATION; CATALYSTS; ELECTRODES; PLATINUM; SUPERCAPACITORS; NANOMATERIALS;
D O I
10.1016/j.electacta.2011.07.066
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Hollow graphitic carbon spheres (HGCSs) with a high surface area are produced by the carbonization of hollow polymer spheres obtained by the polymerization of core/shell-structured pyrrole micelles. HGCSs are employed as a carbon support material in a direct methanol fuel cell catalyst, and their effect on the electrocatalytic activity toward methanol oxidation is investigated. Pt catalyst supported on HGCSs shows a better electrocatalytic activity compared to that on Vulcan XC-72, which has been commonly used in fuel cell catalysts. The observed enhancement in the electrocatalytic activity is attributed to the improved electronic conductivity and high surface area of HGCSs. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:8674 / 8679
页数:6
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