Continuous Synthesis of Multi-Walled Carbon Nanotubes from Xylene Using the Swirled Floating Catalyst Chemical Vapour Deposition Technique
Loading...
Date
2011
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
This work reports the continuous and large-scale production of multiwalled carbon nanotubes
(MWCNTs) from xylene/ferrocene in a swirled floating catalyst chemical vapor deposition reactor
using argon as the carrier gas. The concentration of ferrocene used was 0.01 g/mL of xylene. In
every run, 50-mL xylene gas was used together with xylene/ferrocene mixture injected into the
reactor by means of a burette. The MWCNTs produced were characterized using the transmission
electron microscopy (TEM) and Raman spectra. TEM analysis showed a poor production rate at
850 °C and a good production in the range of 900–1000 °C with optimal production rate at 950 °C.
Furthermore, xylene/ferrocene mixture produced more MWCNTs at 950 °C with H:Ar (1:7) as the
carrier gas. The diameters of the MWCNTs in the temperatures studied ranged from 15 to 95 nm with
wall thicknesses between 0.5 and 0.8 nm.