淡江大學機構典藏:Item 987654321/100573
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/100573


    Title: Effect of Copper Channel Widths on the Performance of Direct Methanol Fuel Cells Under Various Operating Temperatures
    Authors: Chung, C-W;Lin, J-S;Wang, J-S;Luo, W-J;Chen, Z-Y;Chen, C-N
    Contributors: 淡江大學物理學系
    Keywords: Direct methanol fuel cell (DMFC);Fuel channel;Channel width;Hydro-resistant
    Date: 2014-06
    Issue Date: 2015-03-06 10:45:05 (UTC+8)
    Publisher: Bucharest: Institute of Materials Physics
    Abstract: In this study, pure copper was used for the bipolar plates of the direct methanol fuel cells (DMFCs), and the anode and cathode channels were manufactured on the plates in order to reduce the electrical resistance and the volume of the DMFCs. To prevent the corrosion of the copper plates by the methanol fuel, nickel (Ni) and chromium (Cr) were electroplated onto the surface of the plates. Different anode channel widths of 2mm, 1.75mm, 1.5mm, 1.25mm, 1mm, 800  m and 600  m were, respectively, fabricated on the bipolar plates in order to investigate the effect of the anode channel width on the performance of the DMFCs. In this study, it was found that the performance of DMFCs with smaller anode channels was greatly enhanced due to the uniform distribution of the fuel on the anode channels and the longer retention period of the fuel within the anode channels. However, when the width of the anode channel was less than 600  m, the hydro-resistance from the CO2 bubbles produced within the anode channels significantly increased, which hindered the fuel from moving into the anode channels through the wriggle pump. Consequently, the output of the DMFCs decreased. In this study, the performance of the DMFCs was also tested under various operating temperature conditions and supplied fuel flow rates in order to understand the effect of the operating conditions on the output of DMFCs with different anode channel widths.
    Relation: Digest Journal of Nanomaterials and Biostructures 9(2), pp.681-691
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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