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.

中文翻译：

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磺化氧化锆掺杂的MF-4SK膜的输运性质

摘要

通过原位和流延方法获得了基于均质全氟化MF-4SK阳离子交换膜和磺化氧化锆的复合材料。研究了它们的传输性能和透气性。磺化氧化锆的引入导致通过原位和流延方法获得的膜的室温电导率分别增加超过1.5倍和4倍。对于通过原位和流延方法合成的复合膜，表征其不希望有的迁移的阴离子的迁移数降低了1.5倍以上（分别从0.026到0.020和0.020到0.014）。对于基于MF-4SK膜和氧化锆的样品，观察到氢渗透率显着下降（超过3倍）。吸水率，电导率，