One-pot synthesis of vanadium dioxide nanoflowers on graphene oxide

Abstract

A novel graphene oxide (GO)-based nanostructure is synthesized by a one-pot hydrothermal reaction. The nano-hybrid composite materials are based on 2-dimensional (2D) GO sheets and 3-dimensional (3D) VO2 flowers, which are composed of ultrathin 2-dimensional (2D) nanobelts. Interestingly, the 3D VO2 flowers can be well controlled by fine-tuning the preparative parameters (e.g., temperature, reaction time). Such self-assembled 3D flower morphology possesses a higher surface area and a better contact with the graphene matrix, which could be an effective route to extend to other metal oxides.