DICP OpenIR
学科主题物理化学
Self-humidifiying catalyst layer in PEMFC fuel cell at low humidity
Mou ZL(缪智力); Yu HM(俞红梅); Song W(宋微); Zhan D(詹丹); Yi BL(衣宝廉)
会议名称nternational Symposium on Electrochemistry for Energy Conversion and Storage
会议日期2009-8-22
2009-08-22
会议地点中国
页码24/1
部门归属三室
主办者武汉大学
英文摘要Hydrophilic nanosized SiO2 and sulfonated SiO2 particles were added to the cathode catalyst layer (CL) to improve the water wettability and the performance at low humidity of a proton exchange membrane fuel cell (PEMFC). It was found that both nanosized SiO2 and sulfonated SiO2 additive improved the hydrophilicity of the cathode CL by the contact angle measurement. Contrary to nanosized SiO2, sulfonated SiO2 improved the conductivity of the cathode CL. Since the sulfonic groups in sulfonated SiO2 improved the proton conductivity of the cathode CL, the cell with sulfonated SiO2 showed better performance at low humidity. The appropriate sulfonated SiO2 content in the catalyst layer was also investigated. Furthermore, the catalyst layer with sulfonated SiO2 was tested at subzero temperature to improve the fuel cell cold startup capability.
语种中文
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/113790
专题中国科学院大连化学物理研究所
通讯作者Yu HM(俞红梅)
推荐引用方式
GB/T 7714
Mou ZL,Yu HM,Song W,et al. Self-humidifiying catalyst layer in PEMFC fuel cell at low humidity[C],2009:24/1.
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