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A novel phosphoric acid loaded quaternary 1,4-diazabicyclo-[2.2.2]-octane polysulfone membrane for intermediate temperature fuel cells

Lookup NU author(s): Xu Wang, Emeritus Professor Bernard Golding, Professor Majid Sadeghi, Dr Yuancheng Cao, Emeritus Professor Keith Scott

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Abstract

Phosphoric acid loaded quaternary 1,4-diazabicyclo-[2.2.2]-octane (DABCO) polysulfone was synthesised with different degrees of substitution (DS) and the membranes were characterized. The polymer structure was investigated using NMR and FT-IR spectra. The effect of DS on ionic conductivity and fuel cell performance are described. Conductivities of 0.12 and 0.064 S cm(-1) were achieved for the high degree of substitution membrane (05106) and low degree of substitution membrane (DS58), respectively. Fuel cell tests gave a high power output of 400 mW cm(-2) using H-2 and O-2 at 150 degrees C and atmospheric pressure. Therefore, PA/QDPSU membrane has potential applications for intermediate temperature fuel cells (ITFCs). Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Wang X, Xu CX, Golding BT, Sadeghi M, Cao YC, Scott K

Publication type: Article

Publication status: Published

Journal: International Journal of Hydrogen Energy

Year: 2011

Volume: 36

Issue: 14

Pages: 8550-8556

Print publication date: 29/04/2011

ISSN (print): 0360-3199

ISSN (electronic): 1879-3487

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.ijhydene.2011.03.143

DOI: 10.1016/j.ijhydene.2011.03.143

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