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Swelling and electro-osmotic properties of cation-exchange membranes with different structures in methanol-water media

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Barragán García, Vicenta María and García Villaluenga, Juan Pedro and Godino Gómez, María Paz and Izquierdo Gil, María Amparo and Ruiz Bauzá, Carlos and Seoane Rodríguez, Benjamín (2008) Swelling and electro-osmotic properties of cation-exchange membranes with different structures in methanol-water media. Journal of Power Sources, 185 (2). pp. 822-827. ISSN 0378-7753

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Official URL: http://dx.doi.org/10.1016/j.jpowsour.2008.07.043


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Abstract

Electro-osmosis experiments through three cation-exchange membranes with different morphology and similar electric properties have been performed using methanol-water solutions under different experimental conditions. The influence on the electro-osmotic transport of the percentage of methanol on solvent with two different electrolytes, NaCl and LiCl, has been studied. The experimental results show that the presence of methanol in the solutions affects strongly the electro-osmotic flow, and this influence is different depending on the membrane morphology. Correlations among electro-osmotic permeability, swelling behavior, and cell resistance are studied for these membrane systems at different percentages of methanol in solvent.


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© 2008 Elsevier B.V, The authors gratefully acknowledge Prof. C. Larchet and Prof. V. Nikonenko for donating MK40 membrane samples. Financial support from Comunidad de Madrid and Universidad Complutense de Madrid under project CCG06(UCM/MAT(1037 is also gratefully acknowledged.

Uncontrolled Keywords:Fuel-Cells, Ion, Transport, Elctroosmosis, Permeability, Coefficients, Electrolyte, Diffusion, Crossover.
Subjects:Sciences > Physics > Thermodynamics
ID Code:20633
Deposited On:08 Apr 2013 08:56
Last Modified:09 Mar 2016 19:25

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