STRUCTURAL AND CONDUCTION BEHAVIOR OF BISMUTH DOPED GADOLINIUM-CERIA ELECTROLYTE

Abstract

Four samples with composition Ce0.75Gd0.25-xBixO2- δ (x=0.0, 0.05, 0.10, 0.15) were synthesized to study the structural and conduction properties. The structural analysis through x-ray diffraction (XRD), morphology analysis by scanning electron microscopy (SEM), and electrical measurements including dielectric constant, dielectric loss tangent, AC conductivity, and impedance were carried out to characterize these materials for electrolyte applications. An enhancement in electrical conductivity is observed by the doping of bismuth in the samples. Therefore, Gd-Ceria doped with Bismuth appears to be a good candidate for electrolyte applications