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学科主题: 物理化学
题名: Study of Novel Self-humidifying Membrane Based on Sulfonated Poly(Ether Ether Ketone)Hybrid with Functional Supported Catalyst
作者: Zhang Y(张宇) ;  Zhang HM(张华民)
会议名称: EUROPOLYMER CONFERENCE 2008
会议日期: 2008-6-1
出版日期: 2008-06-01
会议地点: 意大利
通讯作者: 张华民
部门归属: 三室
主办者: University of Milan
摘要: In recent years, proton exchange membrane (PEM) fuel cells have attracted a great of interest. However, the complexity of the PEM fuel cell system and the high cost of the key materials (such as the PEM and electro-catalysts) are the urgent challenges hurdling the commercialization of PEM fuel cells. The operation of PEM fuel cells without external humidification subsystem can facilitate water and thermal management and reduce the system weight and complexity. Recently, the sulfonated polyether ether ketone (SPEEK) is considered as a promising candidate for fuel cell application for it possess good thermal stability, mechanical property, proton conductivity and low cost. Study on self-humidifying membranes based on low-cost SPEEK membranes is of significance for the practical application of PEM fuel cells, especially for the portable application. In the present study, a self-humidifying membrane based on SPEEK hybrid with sulfated zirconia (SO42–/ZrO2, SZ) supported platinum catalyst (Pt-SZ catalyst) was investigated for fuel cell applications. To display the advantages of Pt-SZ catalyst as the additive, the IEC, water uptake, proton conductivity, single cell performance and areal resistance measurements were compared between the plain SPEEK membrane, SPEEK/Pt-SiO2 membrane and the SPEEK/Pt-SZ membrane. Experimental results indicated the SPEEK/Pt-SZ self-humidifying membrane exhibited peak power density of 1.0 W/cm2 under dry operation condition compared with 0.89 W/cm2 and 0.58 W/cm2 of SPEEK/Pt-SiO2 and plain SPEEK membranes, respectively. The incorporation of the catalytic, hygroscopic and proton conductive Pt-SZ catalyst in the SPEEK/Pt-SZ self-humidifying membrane facilitated water balance and proton conduction, and accordingly improved its single cell performance under dry operation conditions.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/112866
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Zhang Y,Zhang HM. Study of Novel Self-humidifying Membrane Based on Sulfonated Poly(Ether Ether Ketone)Hybrid with Functional Supported Catalyst[C]. 见:EUROPOLYMER CONFERENCE 2008. 意大利. 2008-6-1.
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