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Composite Membrane Containing a Proton Conductive Oxide for Direct Methanol Fuel Cell

Peck, Dong-Hyun   (Korea Institute of Energy Research(KIER)CC0186897  ); Cho, Sung-Yong   (Korea Institute of Energy Research(KIER)CC0186897  ); Kim, Sang-Kyung   (Korea Institute of Energy Research(KIER)CC0186897  ); Jung, Doo-Hwan   (Korea Institute of Energy Research(KIER)CC0186897  ); Kim, Jeong-Soo   (Dept. of Polymer Eng., Chungnam National UniversityUU0001302  );
  • 초록

    The composite membrane for direct methanol fuel cell (DMFC) was developed using $H_3O^+-{\beta}"-Al_2O_3$ powder and perfluorosulfonylfluroride copolymer (Nafion) resin. The perfluorosulfonylfluroride copolymer (Nafion) resin was mixed with $H_3O^+-{\beta}"-Al_2O_3$ powder and it was made to sheet form by hot pressing. The electrodes were prepared with 60 wt% PtRu/C and 60wt% Pt/C catalysts for anode and cathode, respectively. The morphology and the chemical composition of the composite membrane have been investigated by using SEM and EDXA, respectively. The composite membrane and $H_3O^+-{\beta}"-Al_2O_3$ were analyzed by using FT-IR and XRD. The methanol permeability of the composite membranes was also measured by gas chromatography (GC). The performance of the MEA containing the composite membrane (2wt% $H_3O^+-{\beta}"-Al_2O_3$ ) was higher than that of normal pure Nafion membrane at high operating temperature (e.g. $110^{\circ}C$ ), due to the homogenous distribution of $H_3O^+-{\beta}"-Al_2O_3$ , which decreased the methanol permeability through the membrane and enhanced the water contents in the composite membrane.


  • 주제어

    Composite membrane .   Beta-alumina .   Nafion .   Direct methanol fuel cell (DMFC).  

  • 참고문헌 (13)

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