RT Journal Article
T1 Permeation of electrolyte water-methanol solutions through a Nafion membrane
A1 Barragán García, Vicenta María
A1 García Villaluenga, Juan Pedro
A1 Seoane Rodríguez, Benjamín
A1 Ruiz Bauzá, Carlos
AB The volume flux through a cation-exchange membrane (Nafion 117) separating two equal electrolyte water-methanol solutions as a function of the pressure difference was determined under different experimental conditions. The results show that permeation rates through the membrane are strongly dependent on the methanol content of the solutions, thus the value of the flux increases when the methanol percentage increases. The effect of the electrolyte concentration of the solution on the membrane permeability is less important, although its influence becomes significant at low electrolyte concentration and high methanol content on solvent. This behavior is explained in terms of the amount of solvent sorbed by the membrane. Typical flux behaviors observed with pressure difference are linear at low pressures, exhibiting a positive deviation at higher pressure difference values.
PB Academic Press Inc Elsevier Science
SN 0021-9797
YR 2003
FD 2003-12-15
LK https://hdl.handle.net/20.500.14352/50584
UL https://hdl.handle.net/20.500.14352/50584
LA eng
NO [1] M.P. Hogarth, G.A. Hards, Platinum Met. Rev. 40 (1996) 150.[2] K. Scott, W. Taama, J. Cruickshank, J. Power Sources 65 (1997) 159.[3] A. Heinzel, V.M. Barragán, J. Power Sources 84 (1999) 70.[4] J. Cruickshank, K. Scott, J. Power Sources 70 (1998) 40.[5] T. Okada, G. Xie, O. Gorseth, S. Kjelstrup, N. Nakamura, T. Arimura, Electrochim. Acta 43 (1998) 3741.[6] E.K. Unnikrishnan, S.D. Kumar, B. Maiti, J. Membrane Sci. 137 (1997) 133.[7] P.S. Kauranen, E. Skou, J. Appl. Electrochem. 26 (1996) 909.[8] B.S. Pivovar, Y.Wang, E.L. Cussler, J.Membrane Sci. 154 (1999) 155.[9] K.D. Kreuer, J. Membrane Sci. 185 (2001) 29.[10] T.D. Gierke, G.E. Munn, F.C. Wilson, J. Polym. Sci. Polym. Phys. Ed. 19 (1981) 1687.[11] D. Nandan, H. Mohan, R.M. Iyer, J. Membrane Sci. 71 (1992) 69.[12] S.J. Sondheimer, N.J. Bune, C.A. Fyfe, J. Macromol. Sci. Macromol. Chem. Phys. C 26 (1986) 353.[13] S. Kumar, M. Pineri, J. Polym. Sci. Polym. Phys. Ed. 24 (1986) 1767.[14] P. Dimitrova, K.A. Friedrich, B. Vogt, U. Stimmimg, J. Electrochem. Chem. 532 (2002) 75.[15] E. Skou, P. Kauranen, J. Hentschel, Solid State Ionics 97 (1997) 333.[16] X. Ren, T.E. Springer, S. Gottesfeld, J. Electrochem. Soc. 147 (2000) 92.[17] I. Prigogine, Introduction to Thermodynamics of Irreversible Processes, Interscience, New York, 1967.[18] S. Kjelstrup, T. Okada, M. Ottøy, in: T.S. Sorensen (Ed.), Surface Chemistry and Electrochemistry of Membranes, Dekker, New York, 1999, Chap. 13.[19] A. Narebska, W. Kujawski, S. Koter, J. Membrane Sci. 30 (1987) 125.[20] A. Lehmani, P. Turq, M. Périé, J. Périé, J.P. Simonin, J. Electroanal. Chem. 428 (1997) 81.[21] M. Ise, K.D. Kreuer, J. Maier, Solid State Ionics 125 (1999) 213.[22] N. Carretta, V. Tricoli, F. Picchioni, J. Membrane Sci. 166 (2000) 189.
NO © 2003 Elsevier Inc. This work was supported by the Ministry of Science and Technology of Spain, Project BFM2000-0625.
NO Ministry of Science and Technology of Spain
DS Docta Complutense
RD 4 may 2024