Sodium bismuth titanate samples with different morphology were synthesized via varying the sintering temperature from 1000 to 1150 degrees C. The conductivity was significantly affected with the morphology of the system. The dynamics of ions was understood from the conductivity spectra. The dc conductivity, hopping frequency and exponent values were extracted from the conductivity spectra analysis. The impedance and modulus spectroscopy along with exponent behaviour suggested short range hopping for the sample sintered at 1000 degrees C and followed Ghosh scaling instead of Summerfield scaling. While long-range hopping was observed for the samples sintered at 1150 degrees C and it followed both the Summerfield scaling and Ghosh scaling. Moreover, the stability of the sample is checked in reducing atmosphere. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.