Enhanced SO2 and CO poisoning resistance of CeO2 modified Pt/C catalysts applied in PEM fuel cells
Enhanced SO2 and CO poisoning resistance of CeO2 modified Pt/C catalysts applied in PEM fuel cells
复制标题
CeO2改性Pt/C催化剂在质子交换膜燃料电池中的增强抗SO2和CO中毒能力
DOI:
10.1016/j.electacta.2013.08.141
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发表时间:
2013-12
影响因子:
6.6
通讯作者:
Shichun Mu
中科院分区:
文献类型:
--
作者:
Feng Xu;Ran Xu;Shichun Mu
SO2and CO are detrimental agents to Pt based catalysts applied in proton exchange membrane (PEM) fuel cells. We introduce low-content (2, 4, and 6 wt%) amorphous cerium oxide (CeO2) to modify Pt catalysts for enhancing the SO2and CO tolerance. The structure and morphology of the catalysts are studied by XRD, TEM and XPS analyses. Electrochemical results show that 2 wt% of CeO2in the Pt/C catalyst exhibits the best SO2poisoning resistance, while CO tolerance is enhanced as increasing content of CeO2. The promotional effect of Pt–CeO2/C catalysts on SO2and CO poisoning resistance is also discussed.
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