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Polyoxometalate decorated graphene oxide/sulfonated poly(arylene ether ketone) block copolymer composite membrane for proton exchange membrane fuel cell operating under low relative humidity

Title
Polyoxometalate decorated graphene oxide/sulfonated poly(arylene ether ketone) block copolymer composite membrane for proton exchange membrane fuel cell operating under low relative humidity
Authors
Oh, KwangjinSon, ByungrakSanetuntikul, JakkidShanmugam, Sangaraju
DGIST Authors
Oh, Kwangjin; Son, Byungrak; Shanmugam, Sangaraju
Issue Date
2017
Citation
Journal of Membrane Science, 541, 386-392
Type
Article
Article Type
Article
Keywords
Block CopolymerComposite MembraneFuel Cell PerformancePhosphotungstic AcidProton Conductivity
ISSN
0376-7388
Abstract
A phosphotungstic acid (PW) decorated graphene oxide (GO) is explored as a filler for sulfonated poly(arylene ether ketone) (SPAEK) block copolymer. The SPAEK/PW-mGO composite membrane shows higher proton conductivity than a pristine SPAEK membrane. At 80 °C under 25% relative humidity (RH) condition, the fuel cell configured with the SPAEK/PW-mGO composite membrane shows improved fuel cell performance. A maximum power density of 772 mW cm−2 is observed for the SPAEK/PW-mGO composite membrane, whereas the pristine SPAEK membrane exhibits a maximum power density of 10 mW cm−2 operated under 25% RH at 80 °C. Compared with the NRE-212 membrane, the SPAEK/PW-mGO composite membrane exhibits 4.8-times higher maximum power density. Furthermore, the maximum current density of the SPAEK/PW-mGO composite membrane (2271 mA cm−2) is much higher than pristine SPAEK (39 mA cm−2) and NRE-212 (734 mA cm−2) membranes. © 2017 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/4421
DOI
10.1016/j.memsci.2017.07.020
Publisher
Elsevier B.V.
Related Researcher
Files:
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Collection:
Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles


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