Copper, zinc, and manganese niobates (CuNb2O6, ZnNb2O6, and MnNb2O6): structural characteristics, Li(+)storage properties, and working mechanisms

Abstract

Niobium-based oxides are considered promising anode materials for Li-ion batteries due to their high capacities, good cyclability, and excellent safety. Here, CuNb2O6, ZnNb2O6, and MnNb(2)O(6)niobate nanoparticles were prepared using a solvothermal method followed by heat treatment, and their electrochemical properties as anode materials for Li-ion batteries were explored. These CuNb2O6, ZnNb2O6, and MnNb(2)O(6)nanoparticles have BET surface areas of 3.17-11.53 m(2)g(-1). As anode materials, these nanoparticles display high reversible capacities of 256, 309, and 352 mA h g(-1), respectively, at C/10