Measurement of methanol crossover in direct methanol fuel cell |
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| Institution: | 1. CEA, LETI, Minatec Campus, F-38054 Grenoble, France;2. CEA, INAC, Minatec Campus, F-38054 Grenoble, France;3. Univ. Grenoble Alpes, F-38000 Grenoble, France;1. School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;2. School of Mechanical Engineering, Tongji University, Shanghai 201804, China;3. Engineering Practice Center, Tongji University, Shanghai 200092, China |
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| Abstract: | In a direct methanol fuel cell (DMFC) with a Nafion membrane, a methanol solution fed to the anode permeates to the cathode. This phenomenon causes the depolarization loss at the cathode and the DMFC performance grows worse. In this research, by continuously measuring the concentration of CH3OH, CO and CO2 in the exhaust gas of the cathode, the amount of methanol crossover was determined. Also, the effect of the thickness of polymer electrolyte membrane and the concentration of methanol solution on the amount of methanol crossover were investigated. |
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