Preparation and DMFC performance of a sulfophenylated poly(arylene ether ketone) polymer electrolyte membrane

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DOIResolve DOI: http://doi.org/10.1016/j.electacta.2010.02.014
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TypeArticle
Journal titleElectrochimica Acta
Volume55
Issue11
Pages38173823; # of pages: 7
SubjectPoly(aryl ether ketone)s; Polymer electrolyte membrane; Fuel cells; Membrane electrode assemblies; Direct methanol fuel cells
AbstractA sulfonated poly(aryl ether ether ketone ketone) (PEEKK) having a well-defined rigid homopolymer-like chemical structure was synthesized from a readily prepared PEEKK by post-sulfonation with concentrated sulfuric acid at room temperature within several hours. The polymer electrolyte membrane (PEM) cast from the resulting polymer exhibited an excellent combination of thermal resistance, oxidative and dimensional stability, low methanol fuel permeability and high proton conductivity. Furthermore, membrane electrode assemblies (MEAs) were successfully fabricated and good direct methanol fuel cell (DMFC) performance was observed. At 2M MeOH feed, the current density at 0.5V reached 165 mA/cm, which outperformed our reported similarly structured analogues and MEAs derived from comparative Nafion® membranes.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology
Peer reviewedYes
NRC number51939
NPARC number16020205
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Record identifier82ecb104-462b-4212-8b65-8436ac29cdc4
Record created2010-09-02
Record modified2016-05-09
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