Abstract
Novel thin film composite electrolyte membranes, prepared by dispersion of nano-sized SiO2 particles in the solid acid compound KH(PO3H), can be operated under both oxidizing and reducing conditions. Long-term stable proton conductivity is observed at not, vert, similar140 °C, i.e., slightly above the superprotonic phase transition temperature of KH(PO3H), under conditions of relatively low humidification (pH2O ≈ 0.02 atm).
Original language | Undefined |
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Pages (from-to) | 843-846 |
Journal | Journal of power sources |
Volume | 194 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2009 |
Keywords
- Composite
- Fuel cells
- Proton conductor
- IR-71865
- Solid acid
- METIS-259135
- Electrolyte