STUDY OF THE ELECTRICAL AND ELECTROCHEMICAL PROPERTIES OF CADMIUM FERRITE NANOPARTICLES SYNTHESIZED BY CHEMICAL CO-PRECIPITATION METHOD

Abstract

This work defines the synthesis, characterization and its application of CdFe₂O₄ nanoparticles annealed at different temperatures. The synthesized nanoparticles were characterized by using TG/DTA, XRD, FTIR, FESEM, HRTEM, Electrical measurements, and CV. TG/DT analysis exposes the endothermic and exothermic behavior of the cadmium ferrite nanoparticles. X-ray diffraction (XRD) analysis shows the crystalline nature of the CdFe₂O₄  nanoparticles. The FTIR spectra results indicate the presence of absorption bands around at 560 cm^-1 and 433 cm^-1 and are attributed to the vibrations of tetrahedral and octahedral complexes of cadmium ferrite nanoparticles, respectively. FESEM micrographs disclose the spherical shape of the synthesized nanoparticles. The average crystallite size of the grown nanoparticles was calculated through Scherrers formula and the same is also confirmed by TEM. By studying the variation of dielectric constant, dielectric loss and a conductivity with respect to frequency, the CdFe₂O₄  electrical properties were analysed. The prepared sample shows a Ac conductivity value of 9.0 x 10^-5 S m^-1 which indicates the semiconducting behaviour of CdFe₂O₄  nanoparticles. From the CV study, the observed specific capacitance value  234 Fg^-1 for the scanning rate of 2 mVs^-1 shows its super capacitance behaviour