Hydrothermal synthesis and characterization of VO₂ (B) nanorods array

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• 作者：Xueliang Li ; Xueji Chen ; Xiangying Chen ; Changlong Han ; Chengwu Shi
• 关键词：A1. Nanostructures ; A2. Hydrothermal crystal growth ; B1. Vanadium dioxide
• 刊名：Journal of Crystal Growth
• 出版年：2007
• 期刊代码：49_00220248
• 类别：ch
• 出版时间：1 November 2007
• 卷：309
• 期：1
• 页码：43-47
• 文件大小：451 K

摘要

Highly ordered nanorods array of B phase vanadium dioxide was firstly synthesized with n-butanol as the reducing agent via a simple hydrothermal method without using template. The samples have been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and field emission scanning electron microscopy (FE-SEM). The size of VO₂ (B) nanorods has the dimension of 50–100 nm in diameter and about 1–5 μm in length. The samples were measured as electrode materials by charge–discharge technique and the VO₂ (B) nanorods array demonstrated a high specific capacity of 520 mAh/g at 0.2 C. The influence of reaction temperature on fabricating nanorods array has been studied. The possible growth mechanisms of formation of nanorods and assembly of array were discussed.