Abstract
In this work, a facile hydrothermal method has been used to prepare hierarchical flower-like SnO2 nanostructures without the assistance of any templates or surfactants. The obtained three-dimensional (3D) nanostructures are composed of two-dimensional (2D) nanosheets with smooth surfaces, which are endowed with a specific surface area of 46.7 m2 g−1. As lithium ion battery anodes, hierarchical flower-like SnO2 can interestingly present a high initial coulombic efficiency of 63.4 % and give the 40th reversible discharge capacity of 771.9 mAh g−1 at a current density of 160 mA g−1. Therefore, the 180 °C heat-treatment of aqueous mixture of tin dichloride and sodium hydroxide facilitates the mass production of nanostructured SnO2 for its potential application as lithium ion battery anodes.
Published Version
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