Journal
SOLID STATE IONICS
Volume 329, Issue -, Pages 25-30Publisher
ELSEVIER
DOI: 10.1016/j.ssi.2018.11.012
Keywords
Polybenzimidazole; Composite membranes; Surface-modified silica; Ion conductivity
Categories
Funding
- Russian Science Foundation [16-13-00127]
- Russian Science Foundation [16-13-00127] Funding Source: Russian Science Foundation
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Hybrid membranes based on polybenzimidazole PBI-O-PhT (a polymer based on 3,3',4,4'-tetraaminodiphenyl oxide and 3,3-bis(p-carboxyphenyl)phthalide) were obtained by casting with silica particles with the surface modified by sulfonic groups. The morphology, thermal stability, proton conductivity under various conditions, and hydrogen permeability of the obtained membranes were investigated. It was shown that modification with small amounts of silica (2-5%) increases the conductivity and practically has no influence on the gas permeability of the hybrid membranes.
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