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电化学(中英文) ›› 2001, Vol. 7 ›› Issue (2): 238-243. 

• 研究论文 • 上一篇    下一篇

CO/H_2燃料气的质子交换膜燃料电池性能研究

俞红梅,侯中军,衣宝廉,毕可万,张景新,林治银,韩明   

  1. 中国科学院大连化学物理研究所燃料电池工程中心!辽宁大连116023,中国科学院大连化学物理研究所燃料电池工程中心!辽宁大连116023,中国科学院大连化学物理研究所燃料电池工程中心!辽宁大连116023,中国科学院大连化学物理研究所燃料电池工程中心!辽宁大连116023,中国科学院大连
  • 收稿日期:2001-05-28 修回日期:2001-05-28 出版日期:2001-05-28 发布日期:2001-05-28

Performance of Proton Exchange Membrane Fuel Cell with CO/H_2 Fuel

YU Hong_mei,HOU Zhong_jun,YI Bao_lian,BI Ke_wan, ZHANG Jing_xin,LIN Zhi_yin,HAN Ming   

  1. (Fuel Cell R & D Center,Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023,China
  • Received:2001-05-28 Revised:2001-05-28 Published:2001-05-28 Online:2001-05-28

摘要: 质子交换膜燃料电池的燃料气多来自于重整气 ,而重整气中所含的CO对电催化剂有毒化作用 ,使电池性能大幅度衰减 .本文就CO对燃料电池的性能影响作了系统的实验研究 ,结果证明 :随CO通入时间的延长 ,电池性能剧烈衰减 ,然后趋于稳定 ,但仍有振荡 ;同时CO浓度越高 ,中毒现象越严重 ;温度升高 ,CO的毒化作用减轻 ;CO在催化剂表面的吸附是可逆的 ;PtRu/C较Pt/C的抗CO中毒能力强 .本文所制的PtRu/C催化剂的抗CO性能已与商品催化剂接近

关键词: 质子交换膜燃料电池, CO中毒, Pt/C, PtRu/C

Abstract: Fuel of proton exchange membrane fuel cell(PEMFC) mostly comes from reformate contains CO which will poison the fuel cell electrocatalyst.The effect of CO on the performance of PEMFC was studied in this paper.The results of the experiment show that when CO is fed in PEMFC,the cell voltage will be decreased violently,then it will become steady with some vibration.The poison will become more serious with higher CO content and weaker at higher temperature.The adsorption of CO on the electrocatalyst is reversible. The PtRu electrocatalyst is more suitable for the electrocatalysis of CO/H 2 than Pt electrocatalyst.

Key words: Proton exchange membrane fuel cell, CO poison, Pt/C, PtRu/C

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