Influence of calcination temperature on the structural, electrochemical, and biocompatibility properties of CuFe2O4/ZnFe2O4/MnFe2O4/CeO2 composites

초록

The growing demand for energy storage and sustainable technologies has driven interest in high-performance supercapacitors. In this study, a novel quaternary CuFe2O4/ZnFe2O4/MnFe2O4/CeO2 nanocomposite was synthesized via auto-combustion and calcined at three temperatures (600 degrees C, 700 degrees C, 800 degrees C), resulting in samples designated CZMC-1, CZMC-2, and CZMC-3. Among them, CZMC-1 exhibited the best structural and electrochemical properties, including the highest surface area (17.33 m2/g) and a remarkable specific capacitance (Cs) of 652 F/g at 0.2 A/g. Structural analysis confirmed the formation of mixed phases, while microscopy revealed smaller, more porous particles in CZMC-1. All samples showed paramagnetic behavior and promising pseudo-capacitive performance. Importantly, in vitro, cytotoxicity tests confirmed excellent biocompatibility in both normal and cancer cell lines. These results highlight the potential of this quaternary nanocomposite for dual applications in energy storage and biomedical fields.

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