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Preparation and properties of WO3 as electrocatalyst for proton exchange membrane fuel cell cathode
Author(s): 
Pages: 10-13
Year: Issue:  6
Journal: Journal of Nanjing University of Technology(Natural Science Edition)

Keyword:  WO3Pt/WO3/C阴极催化剂单电池极化;
Abstract: 利用HCl沉淀法制备WO3,并将其制备成Pt/WO3/C复合催化剂应用于质子交换膜燃料电池(PEMFC)的阴极.X射线衍射测试结果表明,制备的WO3结晶度较好,无杂相存在,Pt/WO3/C复合催化剂中WO3晶粒为50~75 nm,Pt晶粒为110~202 nm;循环伏安曲线和单电池极化性能测试结果表明,当m(WO3)∶m(C)=3∶1时,复合催化剂Pt/WO3/C的催化性能最好,最大电流密度为50 mA/cm2,最大功率密度为90 mW/cm2;添加WO3在一定程度上增强了Pt/C催化剂的催化性能.
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