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Showing 1 to 3 of 3 for “"electro-osmotic drag"”.
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Transport and Structure in Fuel Cell Proton Exchange Membranes
… poly(imide) (sPI) copolymers than in Nafion. Electro-osmotic drag coefficient (ED number of water molecules conducted through the membrane per proton) studies confirmed that the water in sulfonated wholly aromatic systems is more tightly bound within the copolymer morphology. Nafion, with a …
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Water transport in fuel cell membranes measured by laser interferometry
(cont.) The coefficients of electro-osmotic drag were found to increase with the increasing water content, which indicates that the Grotthuss mechanism of proton transfer is not active in the membranes with low water content. The successful evaluation of these coefficients has not only showed the …
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Numerical simulation of multi-scale transport processes and reactions in pem fuel cells using two-phase models
… At low current densities, the temperature, electro-osmotic drag, irreversible and losses are quite low but the membrane phase conductivity showed a decreasing pattern along the length of the cathode. At higher current density (0.89 A/cm2), a sharp decrease in the current was observed due to …