Effect of Synthesizing Temperature on the Structure and Magnetic Properties of The Co-Ferrite

Abstract

This study explores the preparation of Co-nano ferrites using the glycine-nitrate auto-combustion method at different synthesis temperatures. The crystal structure, magnetic properties, and morphological traits were investigated using X-rays in diffractometry, a vibrating sample magnetometer, and scanning electron microscopy. Based on the X-ray diffraction (XRD) data, it can be observed that the products produced possess a cubic spinel structure. As the temperature for synthesis is elevated from 100°C to 250°C, there is an observed increase in the size of the crystallites from 21nm to 25nm. Furthermore, an increase in the synthesizing temperature led to a reduction in the lattice constant, which decreased from 8.4155 Å to 8.3565 Å. Scanning electron microscopy (SEM) images, accompanied by histograms, revealed that the ferrite nanoparticles exhibited a tendency to aggregate, as indicated by a variance of around 100 and a standard deviation of 10. The VSM data indicate that an increase in synthesis temperature leads to a corresponding increase in magnetic saturation.