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This study investigates the gas permeability, conductivity and performance of two types of gas diffusion layer (90 g m–2 and 190 g m–2) with various hydrophobic treatments. The performance is measured using a single proton exchange membrane fuel cell (PEMFC) with an active area of 25 cm2. The results prove that 90 g m–2 carbon paper has the best current density in 5% hydrophobic concentration. The...
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