A polytetrafluoroethylene/quaternized polysulfone membrane for high temperature polymer electrolyte membrane fuel cells

被引：17
|
作者：
Li, Mingqiang [1 ,2 ]
Scott, Keith [2 ]
机构：
[1] Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116023, Peoples R China
[2] Newcastle Univ, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
来源：
JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 04期
关键词：
Porous polytetrafluoroethylene composite membrane; Quaternized polysulfone; Phosphoric acid; High temperature; Proton conductivity; Fuel cell; ACID DOPED POLYBENZIMIDAZOLE; CONDUCTIVITY; PERFORMANCE; OPERATION;
D O I：
10.1016/j.jpowsour.2010.10.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A polytetrafluoroethylene (FTFE)/quaternized polysulfone (QNPSU) composite membrane has been fabricated for use in proton exchange membrane fuel cells (PEMFCs) The composite membrane is made by immobilizing a QNPSU solution Into a hydrophobic porous FTFE membrane The structure of the composite membrane is examined by SEM and EDX The ionic conductivity of the FTFE/QNPSU membrane at a relative humidity lower than 05% and a temperature of 180 C is greater than 03 S cm(-1) when loaded with 400% H3PO4 A hydrogen fuel cell with this membrane operating at 2 0 atmosphere absolute (atma) pressure and 175 C gives voltages >04 V at current densities of 1 0A cm(-2) using oxygen (c) 2010 Elsevier B V All rights reserved
引用
收藏
页码：1894 / 1898
页数：5
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