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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
Author(s)
Oh, KwangjinSon, ByungrakSanetuntikul, JakkidShanmugam, Sangaraju
DGIST Authors
Son, ByungrakShanmugam, Sangaraju
Issued Date
2017-07
Type
Article
Article Type
Article
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
  • 손병락 Son, Byungrak 에너지융합연구부
  • Research Interests 연료전지; Fuel Cell; 하이브리드 전원; Hybrid Power; 스택; Stack; 촉매; Catalyst; 연료전지시스템; Fuel Cell System;센서네트워크;Sensor Network
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Appears in Collections:
Department of Energy Science and Engineering Advanced Energy Materials Laboratory 1. Journal Articles
Division of Energy Technology 1. Journal Articles

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