Abstract
New nano-composite electrolyte membranes with good electrical and mechanical properties have been developed using various blend compositions of poly(1-vinylimidazole) (PVIm), poly(vinylidenefluoride-co-hexafluoropropylene) (PVdF-HFP) and trifluoromethansulfonic acid (TA) with sulfonated nano-tubular titania (sTNT). Sulfonated nano-tubular titania and nanocomposite membranes have been successfully synthesized using in house acid-functionalised nano-tubular titania which was synthesized using hydrothermal method. Investigations of the synthesized membranes yield results of elevated conductivity and stability at temperatures in excess of 120°C. Conductivity values of 10-3 S/cm have been noted within these membranes and the morphology has also been found to improve with the addition of sulfonated nano-tubular titania. The nano-composite membranes also shows decrease in the water uptake with the addition of nano-tubular titania.
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