A microwave-assisted rapid synthesis method is developed to prepare mesoporous nanostructured ZnCo 2O 4, which shows excellent electrochemical performance as an anode material for lithium-ion batteries.
Cobalt-based oxides have attracted much attention due to their extensive application in energy storage. In this work, a microwave-assisted second-level rapid synthesis method is developed to prepare ZnCo 2O 4 anode materials for lithium-ion batteries. Mesoporous rose-like nanostructured ZnCo 2O 4 is obtained by heat hydrolysis of a (Zn,Co)-organic hybrid precursor obtained by a rapid microwave-assisted solvothermal route. Systematic investigation on optimization of synthesis conditions is conducted to understand the synthesis-controlled process. Requisite characterization is carried out on the obtained ZnCo 2O 4 by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and N 2 adsorption–desorption. As an anode material, the mesoporous rose-like ZnCo 2O 4 exhibits high capacity and excellent cyclability, which can be ascribed to the easy penetration of electrolytes into the inner part of active materials through numerous pores, stable microstructure, and alleviated volume expansion induced by the porous structure during the Li + insertion/extraction process.
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