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Influence of nano-sized TiO2 on the structural, electrical, and morphological properties of polymer-blend electrolytes PEO–PVC–LiClO4

Fabrication of nanocomposite polymer-blend electrolytes comprising polyethylene oxide, polyvinyl chloride, lithium perchlorate and titanium dioxide (TiO2) (27.03 nm) has been demonstrated using the famous solvent casting technique. AC impedance measurements were carried out in the frequency range of 1 Hz–10 MHz. The effect of filler on the ionic conductivity is explained on the basis of distribution of TiO2, Lewis acid–base interaction, polymer segment-ion coupling and aggloramation of TiO2. Fourier transform infrared spectroscopy spectra showed the occurrence of complexation and interaction among the components. The crystalline and amorphous phases of the complex were identified through X-ray diffraction. Atomic force microscope pictures of the samples confirmed the plasticizing action of nano TiO2.