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Swelling of Nafion in Methanol–Water–Inorganic Salt Ternary Mixtures
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SYSNO ASEP 0339104 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Swelling of Nafion in Methanol–Water–Inorganic Salt Ternary Mixtures Author(s) Randová, A. (CZ)
Hovorka, Š. (CZ)
Izák, Pavel (UCHP-M) RID, ORCID, SAI
Bartovská, L. (CZ)Source Title Journal of Electroanalytical Chemistry. - : Elsevier - ISSN 1572-6657
Roč. 616, 1-2 (2008), s. 117-121Number of pages 5 s. Language eng - English Country CH - Switzerland Keywords nafion ; swelling ; methanol Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GA104/08/0600 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000256114000014 DOI 10.1016/j.jelechem.2007.12.018 Annotation The anisotropic swelling of Nafion 112 foil in methanol–water–inorganic salt was examined by the optical method. Our results show that even small addition of inorganic salt into methanol–water mixture affects kinetics as well as the swelling equilibrium. The effect of inorganic salts LiCl, NaCl, KCl, CsCl, CaCl2, CdCl2, K2CO3, KNO3, NH4Cl, and AgNO3 was studied. Swelling kinetics of Nafion in ternary mixtures including salt show maximum suggesting that in the beginning stage of swelling the diffusion of methanol is faster than ion transport. The experimental data, presented in this work, allow us to assume that swelling of Nafion decreases with increasing ionic radius of cation. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2010
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