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采用自制的实验装置,通过阳极弧放电等离子体技术成功制备了Ni纳米颗粒填充的碳纳米管,利用高分辨透射电子显微镜(HRTEM)、XRD、TEM、X射线能量色散分析谱仪(XEDS)和振动样品磁强计(VSM)等测试手段对样品的化学成分、形态、微观结构和磁性能进行了表征。实验结果表明,采用本文中实验方法能获得大量被纳米金属颗粒填充的碳纳米管,其内部填充物为面心立方(FCC)结构的纳米Ni颗粒,外围薄层为石墨碳层。碳纳米管的外径为30～40nm,壁厚5～8nm,内部填充的纳米颗粒呈球形和椭球形,粒径均匀,在管腔内不连续分布。产物具有顺磁特性,矫顽力是78Oe,饱和磁化强度是33enu/g。
Ni nanoparticle-filled carbon nanotubes (CNTs) were successfully prepared by anodic arc plasma discharge (ICP-IC) using a homemade experimental apparatus. High-resolution transmission electron microscopy (HRTEM), XRD, TEM, XRD and Vibrational sample magnetometer (VSM) and other test methods for the chemical composition of the sample, morphology, microstructure and magnetic properties were characterized. The experimental results show that a large number of carbon nanotubes filled with nano-metal particles can be obtained by the experimental method in this paper. The inner filler is nanocrystalline Ni particles with a face-centered cubic (FCC) structure, and the peripheral thin layer is a graphite carbon layer. The outer diameter of the carbon nanotubes is 30-40 nm and the wall thickness is 5-8 nm. The filled nano-particles are spherical and ellipsoidal with uniform particle size and are not continuously distributed in the lumen. The product has paramagnetic properties with a coercivity of 78 Oe and a saturation magnetization of 33 enu / g.