Synthesis of carbon nanotubes by swirled floating catalyst chemical vapour deposition method

A. S. Abdulkareem, A. S. Afolabi, S. E. Iyuke, H. C. Vz Pienaar

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A series of developments have been made in synthesizing Carbon Nanotubes (CNTs) by Catalytic Vapour Deposition (CVD) methods since its discovery as a possible route to the large scale and high quality production of CNTs. In this study, CNTs were synthesized continuously in a swirled floating catalytic chemical vapour deposition reactor using acetylene as carbon source, ferrocene as catalyst, with argon and hydrogen as carrier gases within the temperature range of 900-1050 °C. The effects of pyrolysis temperature, acetylene flow rate, hydrogen flow rate, and ratio of flow of acetylene to hydrogen on the rate of production of CNTs were investigated. The CNTs produced were purified with dilute nitric acid and the nature and quality of the CNTs were analysed by TEM, Raman spectrometer, EDX, and TGA. Results obtained revealed that a mixture of single and multi wall carbon nanotubes were produced continuously with a maximum yield rate of 0.31 g/min at 1000 °C and a flow ratio of acetylene to hydrogen of one to five.

Original languageEnglish
Pages (from-to)3233-3238
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume7
Issue number9
DOIs
Publication statusPublished - Sep 2007

Fingerprint

Carbon Nanotubes
Chemical vapor deposition
Carbon nanotubes
Acetylene
Catalysts
Hydrogen
Flow rate
Nitric Acid
Vapor deposition
Temperature
Argon
Nitric acid
Spectrometers
Energy dispersive spectroscopy
Pyrolysis
Carbon
Gases
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Materials Science (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Abdulkareem, A. S. ; Afolabi, A. S. ; Iyuke, S. E. ; Vz Pienaar, H. C. / Synthesis of carbon nanotubes by swirled floating catalyst chemical vapour deposition method. In: Journal of Nanoscience and Nanotechnology. 2007 ; Vol. 7, No. 9. pp. 3233-3238.
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Synthesis of carbon nanotubes by swirled floating catalyst chemical vapour deposition method. / Abdulkareem, A. S.; Afolabi, A. S.; Iyuke, S. E.; Vz Pienaar, H. C.

In: Journal of Nanoscience and Nanotechnology, Vol. 7, No. 9, 09.2007, p. 3233-3238.

Research output: Contribution to journalArticle

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