Synthesis of ordered, uniform, macroporous carbons with mesoporous walls templated by aggregates of polystyrene spheres and silica particles for use as catalyst supports in direct methanol fuel cells

被引:290
作者
Chai, GS [1 ]
Shin, IS [1 ]
Yu, JS [1 ]
机构
[1] Hannam Univ, Dept Chem, Taejon 306791, South Korea
关键词
D O I
10.1002/adma.200400283
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Porous carbons with mesoporous walls (see Figure) are produced by template replication of aggregates of small silica particles, which were themselves templated by a self-assembled lattice of larger monodisperse polystyrene spheres. A direct methanol fuel cell using the new material as a catalyst support shows significantly improved performance due to the combination of high surface area and facile fuel and product diffusion.
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页码:2057 / +
页数:6
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