Transport Properties of MF-4SK Membranes Doped with Sulfonated Zirconia
- Authors: Yurova P.A.1,2, Aladysheva U.S.3, Stenina I.A.1,2, Yaroslavtsev A.B.1,2
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Affiliations:
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- Mendeleev University of Chemical Technology, Higher Chemical College
- Issue: Vol 55, No 12 (2019)
- Pages: 1292-1298
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/191519
- DOI: https://doi.org/10.1134/S1023193519110156
- ID: 191519
Cite item
Abstract
Composite materials based on homogeneous perfluorinated MF-4SK cation-exchange membranes and sulfonated zirconia are obtained by in situ and casting methods. Their transport properties and gas-permeability are studied. The introduction of sulfonated zirconia leads to increase the room-temperature conductivity of membranes obtained by the in situ and casting methods more than 1.5- and 4-fold, respectively. For composite membranes synthesized by the in situ and casting methods, the transport numbers of anions that characterize their undesired transport decrease more than 1.5-fold (from 0.026 to 0.020 and from 0.020 to 0.014, respectively). For samples based on MF-4SK membranes and zirconia, the considerable (more than 3-fold) decrease in hydrogen permeability is observed. The differences in the observed values of water uptake, conductivity, and interdiffusion coefficients in composite membranes are discussed.
About the authors
P. A. Yurova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: yaroslav@igic.ras.ru
Russian Federation, Moscow, 119991; Chernogolovka, Moscow obtast, 142432
U. S. Aladysheva
Mendeleev University of Chemical Technology, Higher Chemical College
Email: yaroslav@igic.ras.ru
Russian Federation, Moscow, 125047
I. A. Stenina
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Institute of Problems of Chemical Physics, Russian Academy of Sciences
Author for correspondence.
Email: irina_stenina@mail.ru
Russian Federation, Moscow, 119991; Chernogolovka, Moscow obtast, 142432
A. B. Yaroslavtsev
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Institute of Problems of Chemical Physics, Russian Academy of Sciences
Author for correspondence.
Email: yaroslav@igic.ras.ru
Russian Federation, Moscow, 119991; Chernogolovka, Moscow obtast, 142432