Synthesis and Electrochemical Characterization of rGO/CoFe2O4 Nanocomposite Material

Abstract

The rGO material was modified with CoFe2O4 nanoparticles by a combination of aqueous precipitation at various pH conditions and reduction at high temperatures. The obtained rGO/CoFe2O4 composite has a porous structure with a substantial surface area and pore volume. At pH 10, the synthesized composite has a specific surface area of 270 m2/g, and the CoFe2O4 particle size is approximately 50 nm. As an electrode material in a supercapacitor system, the material has a specific capacitance of 383 F/g at a current density of 0.1 A/g, and after 1000 cycles, its specific capacitance remains at 91.5%. The obtained results demonstrate that the modification of rGO with CoFe2O4 nanoparticles is an advanced and effective approach to enhancing the electrochemical properties of materials.