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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on Electrode Preparation for Alkaline Fuel Cell

알칼리 연료전지 전극제조에 관한 연구

  • Hong, Jin Ki (Dept. of Chemical Eng., Seoul National University) ;
  • Lee, Kyung Ju (Dept. of Chemical Eng., Seoul National University) ;
  • Lee, Wha Young (Dept. of Chemical Eng., Seoul National University)
  • 홍진기 (서울대학교 공과대학 화학공학과) ;
  • 이경주 (서울대학교 공과대학 화학공학과) ;
  • 이화영 (서울대학교 공과대학 화학공학과)
  • Published : 1990.12.31
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Abstract

This study is proposed to investigate the effect of electrode preparation method for Alkaline Fuel Cell using NaOH as an electrolyte on the Fuel Cell performance. The materials used for the preparation of electrode are Pt and Ag on Vulcan XC-72. Surface area of Vulcan XC-72 have different values according to the pretreatment conditions and the dispersion of Pt is dependent on the impregnation Particle size of Pt impregnated on unpretreated carbon was observed to be $20{\sim}40{\AA}$ and that on pretreated carbon in $N_2$ stream at $950^{\circ}C$ was found to be finely dispersed less then $15{\AA}$. The electrode performance was affected by the particle size of metals and operating temperature. It was revealed from this study that the optimum particle size about $30{\AA}$ and optimum temperature range is between $90{\sim}100^{\circ}C$.

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