Transport Properties of MF-4SK Membranes Doped with Sulfonated Zirconia


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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.

作者简介

P. 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
俄罗斯联邦, Moscow, 119991; Chernogolovka, Moscow obtast, 142432

U. Aladysheva

Mendeleev University of Chemical Technology, Higher Chemical College

Email: yaroslav@igic.ras.ru
俄罗斯联邦, Moscow, 125047

I. Stenina

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Institute of Problems of Chemical Physics, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: irina_stenina@mail.ru
俄罗斯联邦, Moscow, 119991; Chernogolovka, Moscow obtast, 142432

A. Yaroslavtsev

Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences; Institute of Problems of Chemical Physics, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: yaroslav@igic.ras.ru
俄罗斯联邦, Moscow, 119991; Chernogolovka, Moscow obtast, 142432

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