使用溶胶凝胶法制备了Fe Mo MgO催化剂 ,用化学气相沉积法在 10 0 0℃下催化裂解甲烷 ,制备了高质量的单壁纳米碳管。用SEM、TEM、HRTEM、TGA和Raman等方法对制备的纳米碳管粗产品进行了表征。结果表明 :该产物确为单壁纳米碳管 ,单壁纳米碳管直径十分均一 ,在 0 86～ 0 90nm之间 ,且其形态基本上都是以束状存在 ;本方法所制得粗产物中单壁碳管的含量在 30 %以上。 The Fe Mo MgO catalyst was prepared by sol-gel method. Methane was catalytically cracked by chemical vapor deposition at 100 ℃, and high-quality single-walled carbon nanotubes were prepared. The prepared carbon nanotubes were characterized by SEM, TEM, HRTEM, TGA and Raman methods. The results show that the product is indeed single-walled carbon nanotubes, single-walled carbon nanotubes are very uniform diameter, in the range of 0 86 ~ 90nm, and its morphology are basically present as a bundle; crude product obtained by this method The single-walled carbon nanotubes content of 30% or more.