一种高效的用含水乙醇制备单壁碳纳米管的方法

本文采用流化床反应器,利用MgO作为催化剂载体,以Mo和Fe为催化剂。让Ar气流携带含水的乙醇蒸汽进入反应器,通过化学气相沉积(CCVD)法合成了单壁碳纳米管(SWCNTs)。利用拉曼光谱和透射电镜(TEM)对所合成的单壁碳纳米管质量进行检测。实验结果表明无水乙醇中加入7%的水反应温度在950℃时,制备的单壁碳纳米管的质量最好而且管径分布非常均匀。

A Effective Way to Synthesize Single-Walled Carbon Nanotubes Using Alcohol with Water

An effective way to synthesize single-walled carbon nanotubes(SWCNTs) has been developed by means of the catalytic chemical vapor deposition(CCVD) method on MgO supported catalyst using alcohol with water.Ethanol vapor was introduced into the fluidized-bed from a temperature-controlled bubbler by the flow of Ar.With this way,the reaction conditions can be controlled simply.Characteristics of as-grown SWCNTs were presented using Raman spectroscopic analysis and TEM.The experimental results show that the SWCNTs produced by this method possess the significant quality of being free from amorphous carbons and having uniform diameter.