Solvent and acidification method effects in the performance of new sulfonated copolyimides membranes in PEM-fuel cells - Archive ouverte HAL
Article Dans Une Revue Journal of Power Sources Année : 2005

Solvent and acidification method effects in the performance of new sulfonated copolyimides membranes in PEM-fuel cells

Résumé

New sequenced sulfonated naphthalenic polyimides were synthesized contg. a flexible arom.-aliph. diamine. The obtained membranes present the advantage of being sol. in N-Me pyrrolidone (NMP) which is a less toxic solvent than the previously used m-cresol. The authors report on the solvent and acidification method effects on the properties of the membranes such as d., water uptake, proton cond. as well as on the performance of these membranes in fuel cell operation. The membranes prepd. from NMP soln. and acidified with ion-exchange resins give the best results. They have good mech. properties as well as high ionic cond. (14.4 x 10-2 S cm-1 at 80°C and good performances as proton exchange membrane (PEM) in fuel cell at 70°C

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Dates et versions

hal-00555842 , version 1 (14-01-2011)

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  • HAL Id : hal-00555842 , version 1

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J. Alberto Blazquez, Juan J. Iruin, Sorkunde Eceolaza, Catherine Marestin, Régis Mercier, et al.. Solvent and acidification method effects in the performance of new sulfonated copolyimides membranes in PEM-fuel cells. Journal of Power Sources, 2005, 151, pp.63-68. ⟨hal-00555842⟩
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