Abstract

Nickel substituted copper ferrite nanoparticles, NixCu1-xFe2O4(x=0.3, 0.5 and 0.7) were attained by uniqueco-precipitation method by means of citric as a chelating agent from which the as-prepared samples were calcinated, with respect to TG/DT analysis at different temperatures 400 °C, 600 °C and 800°C. From the X-ray diffraction study it confirmed that the synthesized nickel cobalt ferrite nanoparticles were in cubic spinel structure. On behalf of the line broadening of X-ray diffraction pattern, the average crystallite size of the produced samples was predictable. The deviations of crystallite size were detected with alteration in both temperature as well as the addition of nickel concentration in copper ferrite lattice. Based on the TG/DT analysis, the optimized nickel copper ferrite (x=0.5) sample calcinated at 600°C was characterized by FESEM with EDAX and FETEM with SAED pattern specifies that the particles are in cubic shape with some agglomeration. EDAX analysis revealed that the amount of the synthesized sample contains only Cu, Ni, Fe and O. To understand the super capacitive behavior of the sample cyclic voltammetry (CV) study was carried out and it gives a promising result of 293 Fg-1at low scan rate 2 mVs-1to the sample calcinated at 600 °C for the concentration Ni0.5Cu0.5Fe2O4which is suggested for super capacitance application.

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