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Volume 29 Issue 5
Aug.  2021
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Article Contents
LIN Caishun, ZHANG Hongfei, WANG Shuyan, WANG Xindong. Electrochemical performance of a direct methanol fuel cell[J]. Chinese Journal of Engineering, 2007, 29(5): 486-489. doi: 10.13374/j.issn1001-053x.2007.05.010
Citation: LIN Caishun, ZHANG Hongfei, WANG Shuyan, WANG Xindong. Electrochemical performance of a direct methanol fuel cell[J]. Chinese Journal of Engineering, 2007, 29(5): 486-489. doi: 10.13374/j.issn1001-053x.2007.05.010

Electrochemical performance of a direct methanol fuel cell

doi: 10.13374/j.issn1001-053x.2007.05.010
  • Received Date: 2006-01-24
  • Rev Recd Date: 2006-04-14
  • Available Online: 2021-08-16
  • Using Pt-Ru/C and Pt/C as anode and cathode catalysts, the membrane electrode assembly was prepared and a single direct methanol fuel cell system was installed. The electrochemical performance of a direct methanol fuel cell (DMFC) at different technological parameters such as methanol flow, methanol concentration, methanol temperature and humidifying air temperature was investigated by means of steady-state galvanostatic and potentiostatic polarization. The experimental result shows that the output current density and power density were 68 mA·cm-2 and 14.8 mW·cm-2 respectively with ambient air as cathode oxidant when the working temperature was 25℃ and the output voltage was 0.22 V. The four technological parameters significantly affected the performance of a direct methanol fuel cell. In the experiment, the optimum technological parameters were the methanol flow of 2 mL·min-1, the methanol concentration of 2 mol·L-1, the methanol temperature of 30℃ and the humidifying air temperature of 40~60℃.

     

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