Spinel ferrites are attaining huge importance in the modern era, due to their incredible properties, which means they widely used various fields. Therefore, this paper a cost-effective and environmentally friendly preparation of Mg0.25Ni0.25Cu0.5?xCoxFe1.97La0.03O4 (x = 0.0, 0.125, 0.25, 0.375, 0.5) via sol–gel auto-combustion method were carried out. How structural functional properties varied...

Nanocrystalline Ni1-xZnxFe2O4 (x = 0, 0.2, 0.3 and 0.4) mixed ferrite with cubic spinel structure was successfully prepared by the citrated sol-gel method followed by calcinations at 600 C. Characterization of the materials was performed by XRD. Indirect-heating sensors using as-prepared powders of mixed ferrite as sensitive materials were fabricated on an alumina tube with Au electrodes and Pl...