Role of Catalyst Support (CS) in the Growth of Multi-Walled Carbon Nanotubes (MWCNTs)

Abstract

Since the first observation of carbon nanotubes in 1991, their synthesis by different techniques has been extensively investigated. Several production methods have been developed aiming at the production of carbon nanotubes (CNT). Main methods are laser vaporization, electric arc discharge and catalytic chemical deposition of hydrocarbons over metal catalysts (CCVD technique). This paper describes how to produce multiwalled carbon nanotubes (MWCNTs) in pilot plant by CCVD technique. The aim of this investigation was to decide the intervals of reaction parameters with the most effective catalyst support on a large scale. The products were analysed by transmission electron microscopy (TEM). Analysis has shown the diameter and length of carbon nanotubes.