Proton Ion Conducting Solid Polymer Electrolytes Based on Chitosan Incorporated with Various Amounts of Barium Titanate (BaTiO₃)

摘要

Here the impact of barium titanate (BaTiO3) nano filler on both electrical and dielectric properties ofproton conducting solid polymer electrolytes based on chitosan have been discussed using ACimpedance spectroscopy. The impedance data reveals that up to 3 wt. % of BaTiO3, the conductivityshows an increaseAt low frequency, the maximum values for both dielectric constant and dielectricloss have been observed. Further distinguishable peaks have been observed in the imaginary part ofelectric modulus while no such peaks were observed in dielectric loss spectra From the Argand plots,the relaxation processes was interpreted. At low temperature, the DC conductivity versus reciprocal oftemperature obeys the Arrhenius equation and at the high temperature, the curvature was obtained asan evidence for ion transport process with the aid of polymer segmental motion. Grotthus mechanismwas used to interpret the conductivity behaviors of the samples.