RT Journal Article
T1 Simultaneous electroosmotic and permeation flows through a Nafion membrane - 1. Aqueous electrolyte solutions
A1 Barragán García, Vicenta María
A1 Ruiz Bauzá, Carlos
A1 García Villaluenga, Juan Pedro
A1 Seoane Rodríguez, Benjamín
AB The volume flow through a Nafion membrane originated by the simultaneous action of an electric potential difference and a pressure difference has been measured using aqueous KCl solutions under different experimental conditions. The behavior has been analyzed when both gradients act in the same and in the opposite sense. The results indicate that the simultaneous action of the pressure and potential differences originates a total flow different from the sum of the electroosmotic and permeation flows due to each force acting separately. The application of irreversible thermodynamics, which includes second-order terms, allowed the determination of the phenomenological coefficients. Moreover, from these values, the equivalent pore radius was estimated on the assumption that the membrane is a porous medium filled with an internal solution.
PB Academic Press Inc Elsevier Science
SN 0021-9797
YR 2004
FD 2004-09-01
LK https://hdl.handle.net/20.500.14352/50563
UL https://hdl.handle.net/20.500.14352/50563
LA eng
NO © 2004 Elsevier. Financial support from the Ministerio de Ciencia y Tecnología of Spain under Project BFM2000-0625 is gratefullyacknowledged.
NO Ministerio de Ciencia y Tecnología
DS Docta Complutense
RD 7 jun 2025