Solvent-free solid-state synthesis of NiFe2O4 nanoparticles: calcination temperature-dependent structure–property correlations for high-performance supercapacitors
This work presents the synthesis of NiFe2O4 (NFO) nanoparticles by the solid-state reaction method for supercapacitor applications and investigates the effect of calcination temperature. A cubic inverse spinel phase of nickel ferrite is confirmed by X-ray diffraction (XRD), and Ostwald ripening causes crystallite size...