Abstract
A method for the synthesis of chemically and thermally robust sulfonic-acid-containing hybrid membrane materials has been established. These polyelectrolyte membranes are prepared by oxidation of the corresponding disulfide-bridged polysilsesquioxanes. This strategy allows for high acid-group loading. Their microstructure is determined by nitrogen adsorption porosimetry, solid-state NMR spectroscopy, and atomic force microscopy. Application of these hybrid materials as proton-exchange membranes for fuel cells is investigated by measuring their proton conductivity, which increases linearly with increasing sulfonic acid content to 6.2 mS/cm.
Original language | English (US) |
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Pages (from-to) | 3665-3673 |
Number of pages | 9 |
Journal | Chemistry of Materials |
Volume | 18 |
Issue number | 16 |
DOIs | |
State | Published - Aug 8 2006 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Materials Chemistry