Fabrication and lithium storage properties of MnO2 hierarchical hollow cubes

摘要

MnO2 hollow cubes with nanosheets as the in situ formed building units have been fabricated via a novel template approach. The method is based on hydrothermal deposition of MnO2 nanosheets on silica hollow cubes and the sequential NaOH-dissolution of silica. In virtue of hollow interior voids and higher specific surface area, the MnO2 nanosheet-based hierarchical hollow cubes exhibit improved lithium storage properties compared to MnO2 hierarchical microflowers. (C) 2015 Elsevier B.V. All rights reserved.