Topotactic transformation of single-crystalline TiOF2 nanocubes to ordered arranged 3D hierarchical TiO2 nanoboxes†
Abstract
3D hierarchical TiO2 nanoboxes, enclosed by six ordered arranged TiO2 nanorod arrays, were prepared via a template-engaged topotactic transformation process from TiOF2 nanocubes. The lattice matching between TiOF2 and anatase TiO2 was regarded as the key for the preferential growth and ordered arrangement of the TiO2 nanorods.