| Pt/C催化剂的分散和表征 |
| |
| 引用本文： | 谢方艳,田植群,沈培康.Pt/C催化剂的分散和表征[J].电源技术,2004,28(10):599-601. |
| |
| 作者姓名： | 谢方艳 田植群 沈培康 |
| |
| 作者单位： | 中山大学,光电材料与技术国家重点实验室,物理科学与工程技术学院,广东,广州,510275 |
| |
| 基金项目： | 国家教育部科学技术研究重点项目(02151)，广东省重大专项基金(2002A1100403) |
| |
| 摘 要： | 利用对Pt/C催化剂分散体系的Zeta电位测定,研究了催化剂在不同溶剂中的分散效果。研究结果说明团聚的Pt/C催化剂在溶剂中分散与溶剂的性质有关,研究所用的溶剂中异丙醇对Pt/C催化剂的分散性最好,经过分散处理后催化剂的颗粒最小。实验结果还发现催化剂的分散效果与溶剂的粘度成反比关系,即粘度越大分散效果越好。
|
| 关 键 词： | 质子交换膜燃料电池 膜组装电极(MEA) Pt/C 催化剂 Zeta电位 |
| 文章编号： | 1002-087X(2004)10-0599-03 |
| 修稿时间： | 2003年12月19 |
Dispersion and characterization of Pt/C catalysts |
| |
| XIE Fang-yan,TIAN Zhi-qun,SHEN Pei-kang.Dispersion and characterization of Pt/C catalysts[J].Chinese Journal of Power Sources,2004,28(10):599-601. |
| |
| Authors: | XIE Fang-yan TIAN Zhi-qun SHEN Pei-kang |
| |
| Abstract: | Dispersion of aggregated Pt/C catalyst in various dispersing solvents had been studied by determination of Zeta po-tentials. The particle size of Pt/C catalyst in solvent strongly depended on properties of the solvent. The results showed that the best performance could be achieved in isopropanol. And the dispersion of catalyst was inversely proportional to viscosity of the solvent, that is, the higher viscosity of the solvent ,the better dispersion performance of the aggregated Pt/C catalyst. |
| |
| Keywords: | proton exchange membrane fuel cell membrane electrode assembly Pt/C catalyst Zeta potential |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
