A facile method for preparing VO₂ nanobelts

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• 作者：Xinghai Liu ; Guangyong Xie ; Chi Huang ; Qian Xu ; Yifu Zhang ; Yunbai Luo
• 关键词：Nanomaterials ; VO₂ ; Nanobelts ; Hydrothermal ; X-ray diffraction
• 刊名：Materials Letters
• 出版年：2008
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：30 April 2008
• 卷：62
• 期：12-13
• 页码：1878-1880
• 文件大小：458 K

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.