利用化学气相沉积法,采用二甲苯为碳源,二茂铁为催化剂,氮气作保护气,在石英基底上催化裂解生长定向纳米碳管。试验结果表明:在775℃、120min的条件下,可生长出长达200μm厚的定向纳米碳管薄膜;在775℃,反应时间为60min～120min时,纳米碳管的长度为100μm～200μm,而纳米碳管的直径变化不明显。而无氢气、较高的反应温度和连续的催化剂供给对快速生长定向纳米碳管有着重要的影响。 The chemical vapor deposition method, the use of xylene as a carbon source, ferrocene as a catalyst, nitrogen as a protective gas, the growth of directional carbon nanotubes on a quartz substrate catalytic cracking. The experimental results show that the carbon nanotubes can grow up to 200μm thick at 120 ℃ for 775 ℃ and the length of carbon nanotubes is 100μm ~ 200μm at 775 ℃ and 60min ~ 120min The diameter of carbon nanotubes did not change significantly. Without hydrogen, higher reaction temperature and continuous catalyst supply have an important influence on the rapid growth of oriented carbon nanotubes.