Development of MgFe2O4/ZnFe2O4/CeO2 nanocomposites: Exploration for electrochemical energy storage and biocompatible properties

Ternary nanocomposites offer significant potential for diverse applications. A pressing global challenge is the need for cost-effective, environmentally friendly electrode materials to power advanced electrochemical devices. Our research focused on developing eco-conscious MgFe2O4/ZnFe2O4/CeO2 nanocomposites to address this issue. Calcination at 600 degrees C and 700 degrees C the MgFe2O4/ZnFe2O4/CeO2 nanocomposites average particle sizes of 8 nm and 9 nm. Comprehensive physicochemical analysis revealed that increasing the calcination temperature led to a decrease in pore volume and BET surface area, with the specific surface area ranging from 37.96 to 11.12 m2/g. Saturation magnetization (Ms) values were determined to be 2.66 emu/g and 5.85 emu/g. The Lande gfactor was found to be 2.042 and 2.033. Notably, the MgFe2O4/ZnFe2O4/CeO2 nanocomposite calcined at 600 degrees C exhibited pseudocapacitive behavior in a 1 M KOH electrolyte, achieving a specific capacitance (Cs) of 124.9 F g-1 . This promising electrochemical performance positions these materials as potential candidates for affordable, high-performance electrodes in various applications, including supercapacitors (SCs). Furthermore, cytotoxicity assessments on normal mouse muscle fibroblast (BLO-11) and human breast cancer cell lines (MDA-MB-231) demonstrated improved cell viability for the synthesized nanocomposites. These findings suggest that MgFe2O4/ ZnFe2O4/CeO2 nanocomposites calcined at 600 degrees C and 700 degrees C could find applications in biomedical fields, such as implant technologies.