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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
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
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页码:1894 / 1898
页数:5
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