A Study on the Performance Characteristics of Direct Methanol Fuel Cell with Changing of Catalyst Loading

촉매량 변화에 따른 직접 메탄올 연료전지의 성능 특성에 관한 연구

  • Published : 2008.12.30

Abstract

This study is to investigate the influence of catalyst loading quantity on the direct methanol fuel cell (DMFC) performance. In this paper, Pt-Ru and Pt-black loading as the catalyst were varied from 1 to $4mg/cm^2$ at the anode and cathode, respectively. The experiment was conducted with single fuel cell consisted of $5cm^2$ effective electrode area, serpentine type flow pattern and Nafion 117 membrane. Also, AC impedance and methanol crossover current were measured to investigate the performance loss precisely. As a result, the performance of fuel cell was significantly increased with the increase of cathode catalyst loading. However, the performance did not increase further above a certain Pt-Ru catalyst loading as the increase of anode catalyst loading.

Keywords

Direct methanol fuel celt;Catalyst loading;AC Impedance;Methanol crossover

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