Prevention of Methanol Crossover in Direct Methanol Fuel Cells (DMFC) by a Barrier Concept

직접메탄올 연료전지에서 금속막을 이용한 메탄올 크로스오버 방지

  • J. H. Shim (Department of Molecular Science and Technology, Ajou University) ;
  • I. G. Koo (Department of Molecular Science and Technology, Ajou University) ;
  • W. K. Her (Department of Molecular Science and Technology, Ajou University) ;
  • Lee, W. M. (Department of Molecular Science and Technology, Ajou University)
  • Published : 2003.05.01

Abstract

Direct methanol fuel cells (DMFC) employing proton exchange polymer electrolyte have recently gained considerable interest because of their attractiveness as the power source for electronic devices or vehicular applications. However, it suffers from the fuel crossover and its impact on cathode operation and the consequent penalty in system energy efficiency. Efforts to circumvent the methanol crossover in DMFC have been made basically along three different strategies.(Omitted)

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