电源技术2011，Vol.35Issue(2)：136-139,4.
低铂Pt/FePO4/C催化剂在PEMFC中的应用
Low-platinum/iron phosphate/carbon catalyst in PEMFC
张莉 1陈剑 2衣宝廉 1张华民1
作者信息
- 1. 中国科学院,大连化学物理研究所,辽宁,大连,116023
- 2. 中国科学院研究生院,北京,100039
- 折叠
摘要
Abstract
Pt/C and Pt/FePO4/C catalysts (5％ Pt) were prepared by ethylene glycol method. The physical properties of the catalysts were characterized by TEM。 The results show that the catalyst particles are uniformly distributed on the support with an average particle size of 1.2 nm for Pt／FePO4/C and 0.9 nm for Pt/C, respectively. The electrochemical active surface area (EAS) and the catalytic activity towards oxygen reduction reaction (ORR) of Pt/FePO4/C catalyst are higher than Pt/C catalyst. The catalysts were both employed as the PEMFC cathode catalysts. The platinum content in the cathode were all 0.08 mg/cm2. The maximum power densities and the cathode catalyst mass specific power densities were 763 mW/cm2 and 9.54 kW/g Pt for Pt/FePO4/C cathode, and 663 mW/cm2 and 8.29 kW/g Pt for Pt/C cathode. This indicates that the catalytic activity of Pt/FePO4/C is higher than Pt/C when they are employed as cathode catalysts of PEMFC.关键词
低铂催化剂/磷酸铁/阴极催化剂/质子交换膜燃料电池Key words
low-platinum catalyst/ iron-phosphate/ cathode catalyst/ PEMFC分类
信息技术与安全科学引用本文复制引用
张莉,陈剑,衣宝廉,张华民..低铂Pt/FePO4/C催化剂在PEMFC中的应用[J].电源技术,2011,35(2):136-139,4.
