催化剂制备工艺对PEMFC氧电极性能的影响

被引：4

作者：

司永超

韩佐青

陈延禧

机构：

[1] 天津大学应用化学系!天津,,天津大学应用化学系!天津,,天津大学应用化学系!天津,

来源：

物理化学学报 | 1998年 / 04期

关键词：

聚合物电解质膜燃料电池（PEMFC）; 氧电极; 催化剂制备工艺; Pt/C电催化剂;

D O I：

暂无

中图分类号：

O643 [化学动力学、催化作用];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of two catalyst fabrication techniques, impregnation method and colloidalmethod, on the performance of the oxygen electrode are studied and the difference in the catalyticactivity of the two kinds of catalysts towards oxygen reduction are also analyzed with the aid ofTEM and XRD. Based on the results and analysis, the following conclusions are obtained :thecatalyst fabricatin technique exerts an effect on the performance of the oxygen electrode, com-paring the performance of the Pt/C catalyst prepared by impregnation method with that of thePt/C catalyst prepared by colloidal method, the latter shows a higher catalytic activity towardsoxygen reduction; Pt/C electrocatalyst has small particle size and large fraction of Pt(111) crystalsurface.

引用

页码：361 / 364

页数：4