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Sulfonated polyether ether ketone - sulfonated graphene oxide composite membranes for polymer electrolyte fuel cells

Lookup NU author(s): Professor Mohamed MamloukORCiD, Emeritus Professor Keith Scott

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Abstract

Sulfonated polyether ether ketone - sulfonated graphene oxide composite membranes for polymer electrolyte fuel cells have been prepared. Sulfonic acid functionalised graphene oxide nanosheets were incorporated into the sulfonated polyether ether ketone structure to interconnect the proton transport channels. The composite membranes were characterised by SEM, which revealed a uniform distribution of nanosheets into the polymer structure. FTIR showed the chemical interactions of functionalised graphene oxide with SPEEK membranes. Proton conductivity of the composite membrane was measured at various temperatures and relative humidities; the SGO/SPEEK composite membrane showed a very good conductivity of 0.055 S cm(-1) at 80 degrees C and 30% RH, which was greater than that of recast SPEEK which was about 0.015 S cm(-1). The fuel cell performance of SGO/SPEEK at 80 degrees C and 30% RH was 378 mW cm(-2), which was higher than that of recast SPEEK.

Publication metadata

Author(s): Kumar R, Mamlouk M, Scott K

Publication type: Article

Publication status: Published

Journal: RSC Advances

Year: 2014

Volume: 4

Issue: 2

Pages: 617-623

Print publication date: 08/10/2014

ISSN (electronic): 2046-2069

Publisher: Royal Society of Chemistry

URL: http://dx.doi.org/10.1039/c3ra42390e

DOI: 10.1039/c3ra42390e

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