Study of the effect of thermal treatments of PtRu/C catalysts on the hydrogen oxidation reaction in the presence of CO

Química Nova

Lopes, Pietro Papa¹  Ticianelli, Edson Antonio¹  Universidade de São Paulo, São Carlos, Brasil¹ 

关键词: electrocatalysis;    thermal treatment;    CO tolerance.;   

DOI  :  10.1590/S0100-40422007000500038

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In this work the effects of time and temperature of thermal treatments under reducing atmosphere (H2) on PtRu/C catalysts for the hydrogen oxidation reaction (HOR) in the presence of CO on a proton exchange membrane fuel cell (PEMFC) single cells have been studied. It can be seen that the increase of the treatment temperature leads to an increasing sintering of the catalyst particles with reduction of the active area, although the catalyst treated at 550 ºC presents more CO tolerance for the HOR.

【 授权许可】

Unknown