【作者】 许韵华； 晋丽叶； 陈敏； 王永生； 朱红；

【Author】 Xu Yunhua, Jin Liye, Chen min, Wan Yongsheng, Zhu Hong(School of science, Beijing Jiaotong University, Beijng 100044)

【机构】 北京交通大学理学院；

【摘要】 质子交换膜燃料电池采用重整气为燃料时,阳极催化剂的CO中毒问题是影响其性能的主要原因,使用抗(CO催化剂是解决该问题的根本方法。本文研究制备了高分散度的催化剂PtRu/C,透射电镜表明催化剂平均粒度为8～10nm。利用循环伏安法考察此催化剂的活性,并与Pt/C进行比较,结果表明PtRu/C催化剂具有较高的抗CO的能力。更多还原

【Abstract】 When reformed gas is used as fuel in proton - exchange membrance fuel cells, the problem in anode catalyst caused by carbon monoxide poisoning is the main cause in effecting its performance. Using carbon monoxide tolerant catalysts is the most hopeful way to solve the CO problem. In this paper, the PtRu/C catalyst with high dispersion was prepared and researched. The result of TEM show that average diameter of catalyst grain is about 810nm. The activity of PtRu/C was tested by cyclic voltammetry and was compare with canbon supported Pt catalyst. The result of show that PtRu/C catalyst has high capability of CO tolerant.更多还原