Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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Electrospun Poly(Ether Sulfone) Membranes Impregnated with Nafion for High-Temperature Polymer Electrolyte Membrane Fuel Cells

  • Lee, Hong Yeon (Department of Chemical and Bio-molecular Engineering, Yonsei University) ;
  • Hwang, Hyung Kwon (Department of Chemical and Bio-molecular Engineering, Yonsei University) ;
  • Lee, Jin Goo (Department of Chemical and Bio-molecular Engineering, Yonsei University) ;
  • Jeon, Yukwon (Department of Chemical and Bio-molecular Engineering, Yonsei University) ;
  • Park, Dae-Hwan (Department of Chemical and Bio-molecular Engineering, Yonsei University) ;
  • Kim, Jong Hak (Department of Chemical and Bio-molecular Engineering, Yonsei University) ;
  • Shul, Yong-Gun (Department of Chemical and Bio-molecular Engineering, Yonsei University)
  • Received : 2016.01.11
  • Accepted : 2016.01.13
  • Published : 2016.02.29
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Abstract

Electrospun poly(ether sulfone) (PES) membrane impregnated with Nafion (PES-N) have been developed for high-temperature polymer-electrolyte membrane fuel cell (HT-PEMFC). The PES-N obtains highly thermal stability up to $430^{\circ}C$, which is higher than that of the commercial Nafion 212. The PES-N membrane shows a good proton conductivity of about $10^{-2}S\;cm^{-1}$ in a temperature range from $75^{\circ}C$ to $120^{\circ}C$. The membrane-electrode assembly (MEA) with the PES-N membrane exhibits a current density of $1.697A\;cm^{-2}$ at $75^{\circ}C$, and $0.813A\;cm^{-2}$ at $110^{\circ}C$ when the applied voltage is 0.6 V, whereas the MEA with the Nafion 212 membrane shows the current density of $0.647Acm^{-2}$ at $110^{\circ}C$. The results suggest that the PES-N can be a good candidate for a polymer electrolyte membrane of the HT-PEMFC.

Keywords

References

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