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Simultaneous electroosmotic and permeation flows through a Nafion membrane - 2. Methanol-water electrolyte solutions

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Barragán García, Vicenta María and Ruiz Bauzá, Carlos and García Villaluenga, Juan Pedro and Seoane Rodríguez, Benjamín (2005) Simultaneous electroosmotic and permeation flows through a Nafion membrane - 2. Methanol-water electrolyte solutions. Journal of Colloid and Interface Science, 288 (2). pp. 540-547. ISSN 0021-9797

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Official URL: http://dx.doi.org/doi:10.1016/j.jcis.2005.03.019


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Abstract

The volume flow of methanol-water potassium chloride solutions through a Nation membrane originated by the simultaneous action of electric potential and pressure gradients has been measured at different percentage, of methanol. Measurement were conducted when both gradients act in the same and in the opposite directions under different experimental conditions. The result, indicate that the simultaneous action of the pressure and potential differences originates a total flow different from the sum of the individual electroosmotic and permeation flows due to each force acting separately. The application of the irreversible thermodynamics theory, which includes second-order terms, allowed the study of the influence of the composition of the solutions on the determination of the different phenomenological coefficients.


Item Type:Article
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© 2005 Elsevier. Financial support from Ministerio de Ciencia y Tecnología of Spain under Project BFM2000-0625 is gratefully
acknowledged

Uncontrolled Keywords:Exchange Membrane, Transport, Nanofiltration.
Subjects:Sciences > Physics > Thermodynamics
ID Code:20711
Deposited On:12 Apr 2013 08:12
Last Modified:11 Mar 2016 17:05

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