Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis of Inorganic-Organic Composite Electrolyte Membranes for DMFCs

DMFC용 무기-유기 복합 전해질 막의 합성

  • Kim, Eun-Hyung (School of Advanced Materials & Systems Engineering, Kumoh National Institute Technology) ;
  • Yoon, Gug-Ho (School of Advanced Materials & Systems Engineering, Kumoh National Institute Technology) ;
  • Park, Sung-Bum (School of Advanced Materials & Systems Engineering, Kumoh National Institute Technology) ;
  • Oh, Myung-Hoon (School of Advanced Materials & Systems Engineering, Kumoh National Institute Technology) ;
  • Kim, Sung-Jin (School of Advanced Materials & Systems Engineering, Kumoh National Institute Technology) ;
  • Park, Yong-Il (School of Advanced Materials & Systems Engineering, Kumoh National Institute Technology)
  • 김은형 (금오공과대학교 신소재시스템공학부) ;
  • 윤국호 (금오공과대학교 신소재시스템공학부) ;
  • 박성범 (금오공과대학교 신소재시스템공학부) ;
  • 오명훈 (금오공과대학교 신소재시스템공학부) ;
  • 김성진 (금오공과대학교 신소재시스템공학부) ;
  • 박용일 (금오공과대학교 신소재시스템공학부)
  • Published : 2008.02.29
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Abstract

The FAS(Fluoroalkylsilane)/Nafion inorganic-organic composite electrolyte membrane was successfully fabricated through sol-gel method. The FAS having hydrophobic functional group and silanol ligands is impregnated in $Nafion^{(R)}$ membrane to reduce methanol crossover. The prepared FAS/Nafion inorganic-organic composite electrolyte membrane consist of the hydrophobic FAS-derived silicate nano-particles and $Nafion^{(R)}$ matrix showed decrease of methanol crossover and reduction of humidity dependence without large sacrifice of proton conductivity. The microstructural analysis of the composite membranes was performed using FESEM and FTIR. And the effect of the incorporation of the hydrophobic FAS-derived silicate nano-particles into $Nafion^{(R)}$ membrane was investigated via solvent uptake, membrane expansion rate, humidity dependency of proton conductivity and contact angle measurement.

Keywords

References

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