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Investigation of self-humidifying membranes based on sulfonated poly(ether ether ketone) hybrid with sulfated zirconia supported Pt catalyst for fuel cell applications
Zhang, Yu; Zhang, Huamin; Zhai, Yunfeng; Zhu, Xiaobing; Bi, Cheng
关键词Pemfc Self-humidifying Membrane Sulfated Zirconia Supported Platinum Catalyst Speek Proton Conductivity
刊名JOURNAL OF POWER SOURCES
2007-06-01
DOI10.1016/j.jpowsour.2007.03.007
168期:2页:323-329
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Energy & Fuels
研究领域[WOS]Electrochemistry ; Energy & Fuels
关键词[WOS]POLYMER ELECTROLYTE MEMBRANES ; COMPOSITE MEMBRANES ; PEMFC OPERATION ; GAS-CROSSOVER ; METAL-OXIDES ; PROTON ; HUMIDIFICATION ; TRANSPORT ; NAFION ; SUPPRESSION
英文摘要A self-humidifying membrane based on sulfonated poly(ether ether ketone) (SPEEK) hybrid with sulfated zirconia (SO42-/ZrO2, SZ) supported platinum catalyst (Pt-SZ catalyst) was synthesized for fuel cell applications. The SZ, a solid state superacid with hygroscopic properties and proton-conductive properties, was employed to synthesize the Pt-SZ catalyst. The self-humidifying membrane (SPEEK/Pt-SZ) was characterized by TEM, FT-IR. TGA and SEM coupled with EDX. The SPEEK/Pt-SZ membrane exhibited higher water uptake and proton conductivity than the plain SPEEK membrane. Consequently, the SPEEK/Pt-SZ self-humidifying membrane under dry operation showed a higher open circuit voltage (OCV) of 1.015 V and a maximum power density of 0.95 W cm(-2), relative to 0.96 V and 0.54 W cm(-2) for the plain SPEEK membrane. The incorporation of the catalytic. hygroscopic and proton-conductive Pt-SZ catalyst in the SPEEK matrix facilitated water balance and proton conduction, accordingly improved the single cell performance under dry operation. In addition, the enhanced OCV and the decreased area ohmic resistance confirmed the effect of Pt-SZ catalyst in the self-humidifying membrane on suppressing reactant crossover and the membrane self-humidification. (C) 2007 Elsevier B.V All rights reserved.
语种英语
WOS记录号WOS:000247055200004
引用统计
被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140578
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Zhang, Yu,Zhang, Huamin,Zhai, Yunfeng,et al. Investigation of self-humidifying membranes based on sulfonated poly(ether ether ketone) hybrid with sulfated zirconia supported Pt catalyst for fuel cell applications[J]. JOURNAL OF POWER SOURCES,2007,168(2):323-329.
APA Zhang, Yu,Zhang, Huamin,Zhai, Yunfeng,Zhu, Xiaobing,&Bi, Cheng.(2007).Investigation of self-humidifying membranes based on sulfonated poly(ether ether ketone) hybrid with sulfated zirconia supported Pt catalyst for fuel cell applications.JOURNAL OF POWER SOURCES,168(2),323-329.
MLA Zhang, Yu,et al."Investigation of self-humidifying membranes based on sulfonated poly(ether ether ketone) hybrid with sulfated zirconia supported Pt catalyst for fuel cell applications".JOURNAL OF POWER SOURCES 168.2(2007):323-329.
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