Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method

A. S. Afolabi, A. S. Abdulkareem, S. E. Iyuke, H. C. Van Zyl Pienaar

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Various techniques for the synthesis of carbon nanotubes (CNTs) are being developed to meet an increasing demand as a result of their versatile applications. Swirled floating catalyst chemical vapour deposition (SFCCVD) is one of these techniques. This method was used to synthesise CNTs on a continuous basis using acetylene gas as a carbon source, ferrocene dissolved in xylene as a catalyst precursor, and both hydrogen and argon as carrier gases. Transmission electron microscopy analyses revealed that a mixture of single and multi-wall carbon nanotubes and other carbon nanomaterials were produced within the pyrolytic temperature range of 900-1 100°C and acetylene flow rate range of 118-370 ml rnin -1. Image comparison of raw and purified products showed that low contents of iron particles and amorphous carbon were contained in the synthesised carbon nanotubes. Diamond films were produced at high ferrocene concentration, hydrogen flow rate and pyrolysis temperatures, while carbon nanoballs were formed and attached to the surface of the CNTs at low ferrocene content and low pyrolysis temperature.

Original languageEnglish
Pages (from-to)278-281
Number of pages4
JournalSouth African Journal of Science
Volume105
Issue number7-8
Publication statusPublished - Jul 1 2009

Fingerprint

carbon nanotubes
Carbon Nanotubes
Diamond
Diamond films
catalysts
vapors
films (materials)
diamond
Chemical vapor deposition
catalyst
Carbon
Catalysts
Acetylene
acetylene
carbon
pyrolysis
hydrogen
Temperature
Hydrogen
Pyrolysis

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • Earth and Planetary Sciences(all)

Cite this

Afolabi, A. S., Abdulkareem, A. S., Iyuke, S. E., & Van Zyl Pienaar, H. C. (2009). Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method. South African Journal of Science, 105(7-8), 278-281.
Afolabi, A. S. ; Abdulkareem, A. S. ; Iyuke, S. E. ; Van Zyl Pienaar, H. C. / Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method. In: South African Journal of Science. 2009 ; Vol. 105, No. 7-8. pp. 278-281.
@article{4f00ee6df60a431e837cc5506e04f5d1,
title = "Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method",
abstract = "Various techniques for the synthesis of carbon nanotubes (CNTs) are being developed to meet an increasing demand as a result of their versatile applications. Swirled floating catalyst chemical vapour deposition (SFCCVD) is one of these techniques. This method was used to synthesise CNTs on a continuous basis using acetylene gas as a carbon source, ferrocene dissolved in xylene as a catalyst precursor, and both hydrogen and argon as carrier gases. Transmission electron microscopy analyses revealed that a mixture of single and multi-wall carbon nanotubes and other carbon nanomaterials were produced within the pyrolytic temperature range of 900-1 100°C and acetylene flow rate range of 118-370 ml rnin -1. Image comparison of raw and purified products showed that low contents of iron particles and amorphous carbon were contained in the synthesised carbon nanotubes. Diamond films were produced at high ferrocene concentration, hydrogen flow rate and pyrolysis temperatures, while carbon nanoballs were formed and attached to the surface of the CNTs at low ferrocene content and low pyrolysis temperature.",
author = "Afolabi, {A. S.} and Abdulkareem, {A. S.} and Iyuke, {S. E.} and {Van Zyl Pienaar}, {H. C.}",
year = "2009",
month = "7",
day = "1",
language = "English",
volume = "105",
pages = "278--281",
journal = "South African Journal of Science",
issn = "0038-2353",
publisher = "National Research Foundation",
number = "7-8",

}

Afolabi, AS, Abdulkareem, AS, Iyuke, SE & Van Zyl Pienaar, HC 2009, 'Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method', South African Journal of Science, vol. 105, no. 7-8, pp. 278-281.

Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method. / Afolabi, A. S.; Abdulkareem, A. S.; Iyuke, S. E.; Van Zyl Pienaar, H. C.

In: South African Journal of Science, Vol. 105, No. 7-8, 01.07.2009, p. 278-281.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Continuous production of carbon nanotubes and diamond films by swirled floating catalyst chemical vapour deposition method

AU - Afolabi, A. S.

AU - Abdulkareem, A. S.

AU - Iyuke, S. E.

AU - Van Zyl Pienaar, H. C.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Various techniques for the synthesis of carbon nanotubes (CNTs) are being developed to meet an increasing demand as a result of their versatile applications. Swirled floating catalyst chemical vapour deposition (SFCCVD) is one of these techniques. This method was used to synthesise CNTs on a continuous basis using acetylene gas as a carbon source, ferrocene dissolved in xylene as a catalyst precursor, and both hydrogen and argon as carrier gases. Transmission electron microscopy analyses revealed that a mixture of single and multi-wall carbon nanotubes and other carbon nanomaterials were produced within the pyrolytic temperature range of 900-1 100°C and acetylene flow rate range of 118-370 ml rnin -1. Image comparison of raw and purified products showed that low contents of iron particles and amorphous carbon were contained in the synthesised carbon nanotubes. Diamond films were produced at high ferrocene concentration, hydrogen flow rate and pyrolysis temperatures, while carbon nanoballs were formed and attached to the surface of the CNTs at low ferrocene content and low pyrolysis temperature.

AB - Various techniques for the synthesis of carbon nanotubes (CNTs) are being developed to meet an increasing demand as a result of their versatile applications. Swirled floating catalyst chemical vapour deposition (SFCCVD) is one of these techniques. This method was used to synthesise CNTs on a continuous basis using acetylene gas as a carbon source, ferrocene dissolved in xylene as a catalyst precursor, and both hydrogen and argon as carrier gases. Transmission electron microscopy analyses revealed that a mixture of single and multi-wall carbon nanotubes and other carbon nanomaterials were produced within the pyrolytic temperature range of 900-1 100°C and acetylene flow rate range of 118-370 ml rnin -1. Image comparison of raw and purified products showed that low contents of iron particles and amorphous carbon were contained in the synthesised carbon nanotubes. Diamond films were produced at high ferrocene concentration, hydrogen flow rate and pyrolysis temperatures, while carbon nanoballs were formed and attached to the surface of the CNTs at low ferrocene content and low pyrolysis temperature.

UR - http://www.scopus.com/inward/record.url?scp=70350147273&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350147273&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:70350147273

VL - 105

SP - 278

EP - 281

JO - South African Journal of Science

JF - South African Journal of Science

SN - 0038-2353

IS - 7-8

ER -