摘要
Metastable VO2 nanobelts were synthesized via a facile hydrothermal approach. Then the as-obtained samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Typical samples exhibited monoclinic phase VO2 (B) indexed as XRD, and the XPS results demonstrated that the V (IV) existed only in vanadium oxides. According to the results of TEM and SEM, the VO2 (B) nanobelts were 0.6–2.2 μm long, typically 70–180 nm wide and 20–30 nm thick. Some factors that affected the shape of One-dimensional (1-D) VO2 nanomaterials were briefly discussed.