Abstract
Thermally sensitive, ceria based proton conducting solid polymer electrolyte films were prepared by doping ammonium ceric sulfate complex salt in a PVA matrix using solution casting method. The prepared films were characterized using FTIR, FESEM, TGA, UTM and impedance analyzer in order to understand structural, morphological, thermal, mechanical and electrical properties CeO2 nanoparticle based PVA/ACS composites. The presence of spindle shaped CeO2 nanoparticle was confirmed from FESEM micrographs. The prepared films shown good thermal stability up to 200 °C. The 15 wt% ACS doped PVA electrolyte shown good conductivity, mechanical strength and thermal stability. The Rice and Roth model have been used to evaluate transport parameters and it reveals that enhancement in conductivity is due to increment in the number density of mobile ions as the increase in salt concentration.
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