Hydrothermal synthesis of single-crystal VO 2(B) nanobelts

Abstract

Single crystalline VO 2(B) nanobelts with a metastable structure were obtained through a simple hydrothermal synthetic method. The VO 2(B) nanobelts were characterized by means of X-ray diffraction, transmission electron microscopy, selected area electronic diffraction, field-emission scanning electron microscopy and X-ray energy-dispersive spectroscopy techniques. The as-obtained VO 2(B) nanobelts are 400–600 nm long, typically 100–150 nm wide and 20–30 nm thick. The belt-like VO 2(B) with a high surface area may be beneficial to lithium insertion between the VO 6 layers for application in batteries.