Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 39, Issue 36, Pages 21223-21230Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.10.007
Keywords
Anion exchange membrane; Poly(arylene ether sulfone); Quaternary ammonium groups; Solid alkaline exchange membrane fuel cell
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Funding
- project KIST Institutional Program from the Korea Institute of Science and Technology
- project COE from the Korea Institute of Science and Technology
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Poly(arylene ether sulfone)s with tetra(quaternary ammonium) hydroxide groups in the repeating unit of the polymer main chain were prepared for solid alkaline exchange membrane fuel cells. We synthesized a novel monomer with four amine groups which were derivatized to ammonium functional groups. Using this monomer, we easily synthesized poly(arylene ether sulfone)s which conduct hydroxyl ions. This direct synthetic method can control the exact amount of quaternary ammonium hydroxide groups in the polymer structure. The polymers were characterized by NMR, thermogravimetric analysis, water uptake, conductivity, and cell performance. In a solid alkaline exchange membrane fuel cell test, a maximum power output of 77 mW cm(-2) was achieved using hydrogen and oxygen. Copyright (c) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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