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

Seo, Sang-Hern (Graduate School of Hanyang Univ.)
Lee, Chang-Sik (Department of Mechanical Engineering, Hanyang University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.19, no.6, 2008 , pp. 467-473 More about this Journal
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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Times Cited By KSCI : 1  (Citation Analysis)
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