We report the synthesis of cobalt-based hexacyanoferrate (Co-HCF) via a simple co-precipitation method and its subsequent conversion to a derived oxide through thermal treatment. Comprehensive characterization was performed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). XRD confirms the cubic crystal structure corresponding well to the JCPDS card no. 00-024-0327. FTIR confirms the presence of functional groups in Co-HCF, while the annealing process results in the complete removal of the cyanide ligands, yielding the derived oxide. SEM and EDX analyses confirm the cubic morpholo... More >