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Journal of Nanomaterials
Volume 2012 (2012), Article ID 972126, 5 pages
http://dx.doi.org/10.1155/2012/972126
Research Article

An Investigation on the Formation of Carbon Nanotubes by Two-Stage Chemical Vapor Deposition

1Centre of Nanoscience and Nanotechnology (NANO-SciTech Centre), Institute of Science, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Malaysia
2School of Physics and Material Studies, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Malaysia
3NANO-ElecTronic Centre, Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Malaysia

Received 21 August 2011; Accepted 12 January 2012

Academic Editor: Teng Li

Copyright © 2012 M. S. Shamsudin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

High density of carbon nanotubes (CNTs) has been synthesized from agricultural hydrocarbon: camphor oil using a one-hour synthesis time and a titanium dioxide sol gel catalyst. The pyrolysis temperature is studied in the range of 700–900°C at increments of 50°C. The synthesis process is done using a custom-made two-stage catalytic chemical vapor deposition apparatus. The CNT characteristics are investigated by field emission scanning electron microscopy and micro-Raman spectroscopy. The experimental results showed that structural properties of CNT are highly dependent on pyrolysis temperature changes.