Abstract
Investigations on Sodium-ion conducting polymer blend electrolyte systems based on PEO/ PVP complexed with NaIO 4 salt and TiO 2 nano fillers were presented in this report. The complexed polymer blend electrolytes were prepared in the form of dimensionally stable and free-standing films by conventional solution cast technique. Micro Raman and XRD studies confirmed the miscibility between PEO and PVP and the complexation of the salt with PEO/PVP polymer host. TEM measurements were carried out to evaluate size & distribution of the dispersed TiO 2 nanofillers. Complex impedance spectroscopy in the frequency 1 Hz – 1 MHz within the temperature range from room temperature to 343 K. Ionic conductivity of blend electrolytes increased with the increase of TiO 2 nanofillers concentration. Electrical conductivity and dielectric properties of NaIO 4 salt complexed blend PEO/ PVP/Na + electrolytes were analysed as a function of TiO 2 nanofillers concentration.
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