高纯单壁纳米碳管大量制备的新方法和工艺条件

在单壁纳米碳管大量制备方面提出了新方法和工艺条件.反复实验及电子显微镜分析表明,利用该方法和工艺条件,可以获得高产量、高纯度单壁纳米碳管.单根给定长度的含有金属的复合石墨阳极与阴极成一定角度在高温氦电弧中放电数分钟,即可获得1.0g以上含有60%左右的单壁纳米碳管的生成物.这为高纯单壁纳米碳管的规模化生产奠定了基础关键词：单壁纳米碳管电弧放电透射电子显微镜分析

A NEW METHOD TO FABRICATE LARGE AMOUNTOF SINGLE-WALLED CARBON NANOTUBES

A new method to prepare large amount of high purity single-walled carbon nanotubes is reported. In this method, a fixed-length metallic graphite anode is arranged at a given angle with the cathode, and then discharged for several minutes in high-temperature helium arc. By using this method, more than one-gram product containing about 60 percent single-walled carbon nanotubes can be obtained, which has been confirmed by the repetitive experiments and transmission electron microscopy (TEM) analysis.