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采用阳极弧放电等离子体技术制备了Ni纳米颗粒填充的碳纳米管,并利用高分辨透射电子显微镜(HRTEM)、X射线衍射(XRD)、透射电子显微镜(TEM)、拉曼光谱(Raman)和X射线能量色散分析谱仪(XEDS)等测试手段对样品的化学成分、形态和物相结构等特征进行了表征。结果表明,采用本实验的方法能获得大量的被纳米金属颗粒填充的碳纳米管,内部填充物为fcc结构的Ni纳米颗粒,外围薄层为石墨碳层。碳纳米管的外径在30~40nm范围内,壁厚5~8nm,内部填充的纳米颗粒呈球形和椭球形,粒径均匀。
Ni nanoparticle-filled carbon nanotubes were prepared by anodic arc discharge plasma (ICP-AES) technique and characterized by high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy X-ray energy dispersive spectroscopy (XEDS) and other testing methods to characterize the chemical composition, morphology and phase structure of the sample. The results show that a large number of carbon nanotubes filled with nano-metal particles can be obtained by using the method of the present invention, the fcc-structured Ni nano-particles are filled in the inner part, and the peripheral thin layer is a graphite carbon layer. The outer diameter of the carbon nanotubes is in the range of 30-40 nm and the wall thickness is 5-8 nm. The nano-particles filled in the inner part are spherical and ellipsoidal with uniform particle size.