Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Characterization of SPAES Composite Membrane Containing Variously Funtionallized MMT for Direct Methanol Fuel Cell Application

다양한 관능기를 포함한 MMT/SPAES 복합막의 직접 메탄올 연료전지용 적용을 위한 특성평가

  • Kim, Deuk-Ju (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University) ;
  • Hwang, Hae-Young (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University) ;
  • Kim, Se-Jong (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University) ;
  • Hong, Young-Taik (Energy Materials Research Center, Korea Research Institute of Chemical Technology) ;
  • Kim, Hyoung-Juhn (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Leem, Tae-Hoon (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • Nam, Sang-Yong (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
  • 김득주 (경상대학교 나노신소재공학과, 아이큐브 사업단) ;
  • 황해영 (경상대학교 나노신소재공학과, 아이큐브 사업단) ;
  • 김세종 (경상대학교 나노신소재공학과, 아이큐브 사업단) ;
  • 홍영택 (한국화학연구원 에너지소재연구센터) ;
  • 김형준 (한국과학기술연구원 연료전지연구센터) ;
  • 임태훈 (한국과학기술연구원 연료전지연구센터) ;
  • 남상용 (경상대학교 나노신소재공학과, 아이큐브 사업단)
  • Received : 2011.01.31
  • Accepted : 2011.02.18
  • Published : 2011.02.28
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Abstract

The Montmorillonite (MMT) in the polymer matrix is expected to reduce methanol permeability due to the tortous path formed by dispersed silicate layers. However, the polymer composite membranes containing non-proton conducting inorganic particle tend to show low proton conductivity. To solve this problem, we used an ion exchange method to prepare functionalized MMT with various silane coupling agents. The modified MMT was randomly dispersed in sulfonated poly (arylene ether sulfone) (SPAES) matrix to prepare SPAES/modified MMT composite membranes. The performances of hybrid membranes for DMFCs application were investigated. The SPAES/modified composite membrane showed increased proton conductivity compared with the non-modified MMT composite membrane. However, the methanol permeability of the SPAES/modified membrane was higher than that of the non-modified MMT.

Keywords

References

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