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The methanol crossover, water transfer and power characteristics of a 40W DMFC stack are investigated under various experimental conditions including different methanol concentrations, flow rates at anode and cathode and flow directions of reactant fluids (methanol solution and air). The performance of each cell in a stack shows some non-uniformity especially at higher current densities. Under Z-type...
The anodes with different morphology for DMFC were prepared, and the influences of the microstructure of anode catalyst layer on their electrochemical performance were investigated by scanning electrochemical microscopy (SECM), scanning electron microscopy (SEM), proton induced X-ray emission (PIXE) and electrochemical methods, respectively. The surface morphology of catalyst layer was observed by...
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