Publication:
Electroosmosis through a cation-exchange membrane: Effect of an ac perturbation on the electroosmotic flow

Loading...
Thumbnail Image
Full text at PDC
Publication Date
2000-10-15
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Academic Press Inc Elsevier Science
Citations
Google Scholar
Research Projects
Organizational Units
Journal Issue
Abstract
Electroosmosis experiments through a cation-exchange membrane have been performed using NaCl solutions in different experimental situations. The influence of an alternating (ac) sinusoidal perturbation, of known angular frequency and small amplitude, superimposed to the usual applied continuous (dc) signal on the electroosmotic Row has been studied. The experimental results show that the presence of the ac perturbation affects the electroosmotic flow value, depending on the frequency of the ac signal and on the solution stirring conditions. In the frequency range studied, two regions have been observed where the electroosmotic Row reaches a maximum value: one at low frequencies (similar to Hz); and another at frequencies of the order of kHz. These regions could be related to membrane relaxation phenomena.
Description
© 2000 by Academic Press. Financial support from the University Complutense of Madrid under Project PR49/98-7756 is gratefully acknowledged.
UCM subjects
Unesco subjects
Keywords
Citation
1. Prigogine, I., “Introduction to thermodynamics of irreversible processes,” 3rd ed. Wiley, New York, 1968. 2. De Groot, S. R., “Thermodynamics of irreversible processes,” 4th ed. North Holland Publishing Co., Amsterdam, 1966. 3. Demish, H. U., and Pusch, W., J. Colloid Interface Sci. 76, 464 (1980). 4. Tasaka, M., Tamura, S., and Takemura, N., J. Membr. Sci. 12, 169 (1982). 5. Haase, R., and Harff, K., J. Membr. Sci. 12, 279 (1983). 6. Reynard, J. M., Larchet, C., Buluestre, G., and Auclair, B., J. Membr. Sci. 67, 57 (1992). 7. Gavach, C., Pamboutzoglou, G., Nedyalkov, M., and Pourcelly, G., J. Membr. Sci. 45, 37 (1989). 8. Soj rensen, T. S., J. Colloid Interface Sci. 168, 437 (1994). 9. Ledjeff, K., Hahtendorf, F., Peinecke, V., and Heinzel A., Electrochim. Acta 40, 315 (1995). 10. Mafé, S., and Ramírez, P., Acta Polym. 48, 234 (1997). 11. Holdik, H., Alcaraz, A., Ramírez, P., and Mafé, S., J. Electroanal. Chem. 442, 13 (1998). 12. Plesner, I. W., Malmgren-Hansen, B., and Soj rensen, T. S., J. Chem. Soc. Faraday Trans. 90, 2381 (1994). 13. Malmgren-Hansen, B., Soj rensen, T. S., Jensen, J. B., and Hennenberg, M., J. Colloid Interface Sci. 130, 359 (1989). 14. Coster, H. G. L., and Chilcott, T. C., in “Surface Chemistry and Electrochemistry of Membranes,” Chap. 19. Dekker, New York, 1999. 15. Zholkovskij, E. K., in “Surface Chemistry and Electrochemistry of Membranes,” Chap. 2. Dekker, New York, 1999. 16. Ruiz-Bauzá, C., and Rueda-Sánchez, C., J. Non-Equilibr. Thermodyn. 15, 281 (1990). 17. Janz, G. J., in “Reference Electrodes,” Chap. 4. Academic Press, London, 1961. 18. Rubistein, I., and Shtilman, L., J. Chem. Soc. Faraday Trans. 2 75, 231 (1979). 19. Tanaka, Y., J. Membr. Sci. 57, 217 (1991). 20. Barragán, V. M., Ruiz-Bauzá, C., and Mengual, J. I., J. Membr. Sci. 95, 1 (1994). 21. Barragán, V. M., Ruiz-Bauzá, C., and Mengual, J. I., J. Collid Interface Sci. 168, 458 (1994). 22. Böttcher, C. J. F., and Bordewijk, P., “Theory of Electric Polarization,” Vol. 2. Elsevier, New York, 1996. 23. Maxwell, J. C., “A Treatise of Electricity and Magnetism.” Dover, New York, 1954. 24. Wagner, K. W., Arch. Electrotech. 2, 371 (1914). 25. Wagner, K. W., Arch. Electrotech. 3, 67 (1914). 26. Lakshminarayanaiah, W., “Transport Phenomena in Membranes.” Academic Press, New York, 1969. 27. Zumbusch, P.V.,Kulcke,W., and Brunner, G., J. Membr. Sci. 142, 75 (1998)
Collections