| 碳纳米管沉积铂和钌对PEMFC抗CO中毒能力的影响 |
| |
| 引用本文： | 李延辉,陈军峰,丁俊,毛宗强,徐才录,吴德海.碳纳米管沉积铂和钌对PEMFC抗CO中毒能力的影响[J].无机材料学报,2004,19(3):629-633. |
| |
| 作者姓名： | 李延辉 陈军峰 丁俊 毛宗强 徐才录 吴德海 |
| |
| 作者单位： | 1. 清华大学机械工程系; 2. 清华大学核能技术设计研究院, 北京 100084 |
| |
| 基金项目： | 国家973项目(G2000026404) |
| |
| 摘 要： | 通过催化裂解法制备了碳纳米管,对其进行氧化处理后,在其表面沉积了分布均匀、尺寸呈纳米级的铂和铂/钌颗粒.实验结果表明,当采用碳纳米管沉积铂为催化剂时,质子交换膜燃料电池的催化剂铂很容易受CO的毒化而失去活性,从而使电池的电压随电流密度的降低而迅速降低;当采用碳纳米管沉积铂/钌为催化剂时,钌能够使铂表面吸附的CO被氧化为CO2,增加催化剂对CO的抵抗能力,使燃料电池的性能提高.
|
| 关 键 词： | 碳纳米管 铂 钌 质子交换膜燃料电池 |
| 文章编号： | 1000-324X(2004)03-0629-05 |
| 收稿时间： | 2003-5-9 |
| 修稿时间： | 2003-6-9 |
Effect of Pt/Ru Supported by Carbon Nanotubes on the Ability of PEMFC to Resist CO Poisoning |
| |
| LI Yan-Hui,CHEN Jun-Feng,DING Jun,MAO Zong-Qiang,XU Cai-Lu,WU De-Hai.Effect of Pt/Ru Supported by Carbon Nanotubes on the Ability of PEMFC to Resist CO Poisoning[J].Journal of Inorganic Materials,2004,19(3):629-633. |
| |
| Authors: | LI Yan-Hui CHEN Jun-Feng DING Jun MAO Zong-Qiang XU Cai-Lu WU De-Hai |
| |
| Affiliation: | 1.Department of Mechanical Engineering; 2. Institute of Nuclear Energy Technology; Tsinghua University; Beijing 100084; China |
| |
| Abstract: | Carbon nanotubes prepared by a catalytic pyrolysis method were oxidized and homo-
geneously deposited with Pt and Pt/Ru nanoparticles on their surfaces. The experimental results
show that the catalysts of Pt deposited on carbon nanotubes of tlie proton exchange membrane
fuel cell are easily poisoned by CO and lose their activity, which make the fuel cell voltage decrease
sharply with decreasing of current density. But their ability to resist CO poisoning improves when
Pt/Ru deposited on carbon nanotubes as catalysts, this suggests that Ru can oxidize CO adsorbed
on the surfaces of Pt into CO_2, so the catalyst ability to resist CO poisoning increases. |
| |
| Keywords: | carbon nanotubes platinum ruthenium proton exchange membrane fuel cell |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
