Enhancing the magnetic and electrochemical properties of Cerium-substituted CaMo MOFs through controlled metal nitrates ratios

• Ce-substituted CaMo MOFs were successfully synthesized via a simple precipitation method. • XPS spectra verified the presence of Ca, Mo, and Ce elements, confirming successful Ce incorporation. • Magnetic measurements demonstrated soft ferromagnetic behavior for all Ce-substituted CaMo MOFs. • Electrochemical studies exhibited distinct redox peaks, confirming pseudocapacitive charge storage characteristics. In this work, Ce-substituted CaMo MOFs were successfully synthesized via precipitation. The characterization of the synthesized MOFs was performed using various experimental techniques. The XRD confirmed a tetragonal structure, with crystallite sizes ranging from 37 to 49 nm. The XPS shows that the elements Ca, Mo, and Ce are present within the synthesized MOFs. The FTIR shows a slight shift of the peak at 430 cm, indicating Ce incorporation induces structural distortion. The SEM shows well-determined spherical morphology, and EDX confirms an increase in the Ce peak with variation in Ca. The magnetization behaviour of Ce-substituted CaMo MOFs shows their tendency towards soft ferromagnetic materials. The well-defined oxidation/reduction peaks of Ce-substituted CaMo MOFs define their pseudocapacitive nature and tend towards supercapacitor applications.