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电化学(中英文) ›› 2006, Vol. 12 ›› Issue (1): 89-92. 

• 研究论文 • 上一篇    下一篇

CeO_2的富氧性能对质子交换膜燃料电池阴极的影响

侯向理;徐洪峰;董建华;孙昕;   

  1. 大连交通大学环境科学与工程学院,大连交通大学环境科学与工程学院,大连交通大学环境科学与工程学院,大连交通大学环境科学与工程学院 辽宁大连116028,辽宁大连116028,辽宁大连116028,辽宁大连116028
  • 收稿日期:2006-02-28 修回日期:2006-02-28 出版日期:2006-02-28 发布日期:2006-02-28

Oxygen Enrichment Effect of CeO_2 to the Cathode Performance of Proton Exchange Membrane Fuel Cell

HOU Xiang-li,XU Hong-feng*,DONG Jian-hua,SUN Xin   

  1. (Department of Environmental Science and Engineering,Dalian Jiaotong University,Dalian 116028,Liaoning,China
  • Received:2006-02-28 Revised:2006-02-28 Published:2006-02-28 Online:2006-02-28

摘要: 应用溶胶法和浸渍法向质子交换膜燃料电池阴极Pt/C催化剂添加CeO2,透射电子显微镜(TEM)分析和循环伏安测试表明:对由上述两种方法制备的各含5%CeO2的Pt/C催化剂,其粒径、形态分布以及CeO2在催化剂表面的覆盖度都不相同.单电池测试结果发现,二氧化铈的富氧作用表现明显,在以溶胶法制得的CeO2-Pt/C催化剂中,3%CeO2含量的催化剂呈现最佳的性能,而由浸渍法制得的CeO2-Pt/C,则以1%CeO2含量的性能最好,但对比之下,不如溶胶法制备的含3%CeO2的催化剂.

关键词: 催化剂, CeO2, 质子交换膜, 燃料电池, 富氧

Abstract: CeO_2 was added to Pt/C catalyst in the cathode of PEMFC by both sol and impregnation methods.The samples were evaluated by TEM,cyclic voltammogram techniques and proton exchange membrane fuel cell performance test.The addition of CeO_2 obviously improved the performance of PEMFC and represented a notable function of oxygen enrichment in the cathode side.But with the addition of CeO_2,part of the catalyst surface was covered and led to the performance drop of the PEMFC.The best content of CeO_2 is 1% when it is added by impregnation method and 3% when it is added by sol method.

Key words: Catalyst, CeO_2, Proton exchange membrane, Fuel cell, Oxygen enrichment

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