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Direct Methanol Fuel Cell (DMFC) Performance

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Direct Methanol Fuel Cell (DMFC) Performance ( direct-methanol-fuel-cell-dmfc-performance )

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This phenomenon is also promoted by high temperature (Figure 4). Experimental data for methanol crossover are shown below: Journal of Power Sources, Volume 127, Issues 1-2, 10 March 2004, Pages 172-180 V. Gogel , T. Frey , Zhu Yongsheng , K. A. Friedrich , L. Jörissen Figure 4: Crossover currant losses compared to total current density These experimental results were obtained by Gogel et al [5] for the following operating conditions: − Anode and Cathode flow rates are respectively 4ccm (1M) and 4000sccm; − Anode and Cathode catalyst loadings are respectively 5.4mg/cm2 Pt/Ru and 6.3mg/cm2 Pt black; − Anode and Cathode outlet pressures are respectively 2.5 and 4 bar respectively; − The membrane is Nafion 105. Methanol crossover (jcross) was deduced from the outlet flow rate of CO2 at the cathode. - 20 -

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