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采用溶胶-凝胶法和水热法,以国产V2O5粉末、H2O2、十六胺为原材料,制备氧化钒纳米管。借助扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、傅立叶红外光谱(FT-IR)及循环伏安法(CV)等技术手段,重点研究了水热合成温度对氧化钒纳米管的形貌、结构及电化学性能的影响。结果表明:在150℃水热反应条件下制备的氧化钒纳米管产率高、形貌均一、管状结构完整;循环伏安测试表明该条件下的氧化钒纳米管具有较高的比容量和良好的锂离子嵌入/脱出可逆性。
Vanadium oxide nanotubes were prepared by sol-gel method and hydrothermal method with domestic V2O5 powder, H2O2 and hexadecylamine as raw materials. With the help of SEM, TEM, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and cyclic voltammetry (CV) Effect of Morphology, Structure and Electrochemical Properties of Vanadium Oxide Nanotubes. The results show that the vanadia nanotubes prepared at 150 ℃ have high yield, uniform morphology and complete tubular structure. Cyclic voltammetry shows that the vanadate nanotubes have high specific capacity and good properties Lithium ion insertion / extraction reversibility.