化学气相沉积法制备碳纳米管

Preparation of Carbon Nanotubes by Chemical Vapor Deposition

碳纳米管（CNTs）是一种具有独特理化性能和结构的一维纳米材料，也是当今纳米材料研究的焦点之一．在化学、生物、医药、能源、电子元件等诸多领域具有极高的应用价值．本文以有机溶剂环己烷为碳源．利用化学气相沉积法（CⅥ））在管式电阻炉内，以氩气为栽气，二茂铁为催化剂，一定温度条件下，制备了直径约为50nm，长度达几十微米以上的多壁碳纳米管（MWNTs）．采用拉曼光谱、扫描电镜、透射电镜、X-射线粉末衍射等测试手段，表征了碳纳米管的微观形貌和结构特征．通过对实验结果的分析和讨论，对CVD制备法中碳纳米管的生长机理进行了尝试性探讨。

We used organic solvents cyclohexane as carbon source by CVD in a tubular resistance furnace with argon as the carrier gas, ferrocene as catalyst under high temperature conditions to preparate carbon nanotubes. By Raman spectroscopy, scanning electron microscopy, transmission electron microscopy and other test methods to characterize the morphology and structure of carbon nanotubes. In addition, we also attempt to explore CVD growth mechanism of carbon nanotubes prepared.