高性能燃料电池催化剂及其5kW常温常压免增湿电堆  

High Performance Fuel Cell Catalyst and 5kW PEMFC Stack Without Humidification at Room Temperature and Atmosphere

作　　者：胡新发[1] 谌敏[1] 廖世军[1] 

机构地区：[1]华南理工大学化学科学学院,广东广州510641

出　　处：《电化学》2008年第4期402-406,共5页Journal of Electrochemistry

基　　金：国家自然科学基金(20476034);广东省重大科技专项(2004A11004003)资助

摘　　要：应用高压有机溶胶法制得高性能的Pt/C催化剂.该催化剂的活性颗粒度达2.8 nm,活性比表面为450 m2/g,并进行了小批量试产(10 g).建立新型直接涂膜电极和免增湿技术,并制作了275 cm2的膜电极,设计和组装5 kW质子交换膜燃料电池电堆,以氢气为燃料,空气为氧化剂在常温常压免增湿条件下试运行,电堆连续运行10 h,输出功率基本稳定不变.The Pt/C catalyst with high dispersion coUoidal method and small batch production（log） and high performance was prepared successfully by an organic of Pt/C catalyst has been realized. The particle sizes of the active components in the catalyst could be as small as 2.8 nm and the active surface area was up to 450 m2/g. A high performance membrane-electrode assembly （MEA） with surface area of 275 cm2 has been prepared by using the home-made catalyst with a catalyst coated membrane method invented in the lab, and a 5 kW stack has been assembled. The stack showed working 10 h at room temperature, atmosphere and without humidification.

关 键 词：有机溶胶法 直接涂膜 免增湿 

分 类 号：TM911.4[电气工程—电力电子与电力传动]