Synthesis and Electrochemical Properties of Co3O4@Reduced Graphene Oxides Derived from MOF as Anodes for Lithium-Ion Battery Applications

In this study, we utilized nano-sized Co3O4 and reduced graphene oxides (rGOs) as composite anode materials for Li-ion batteries. The Co3O4/C was derived from ZIF67 (Zeolitic Imidazolate Framework-67) wrapped in rGOs through precipitation. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) were used to identify the crystal structure, phase purity, surface morphology of composite. composition-optimized Co3O4/rGO/C exhibited a reversible capacity 1326 mAh/g first cycle, which higher than that with 900 at current density 200 mA/g. Moreover, after 80 cycles, maintained 1251 same density, also bare (595 mAh/g). Additionally, good retention 98% 90 indicating its excellent cycling stability high capacity. Therefore, electrode has great potential promising material