Optimization of carbon nanotube powder growth using low pressure floating catalytic chemical vapor deposition

Y. Chen, Z. Sun*, Y. N. Li, B. K. Tay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

A new approach to synthesize carbon nanotube (CNT) powders has been achieved by using the floating catalyst method below atmospheric pressure. Scanning electron microscopy, Raman spectroscopy and high-resolution transmission electron microscopy were utilized to characterize the CNTs samples. Using ferrocene (FeC10H10) as catalyst precursor, cyclohexane (C6H12) as carbon source, H2 as carrier gas and thiophene (C4H4S) as promoter, it is found that the pressure of 15 kPa, temperature of 650 °C and H2 flow rate of 60 sccm would be the optimization condition for synthesis of high quality CNTs. This method is economical and easily scalable for synthesis of CNTs.

Original languageEnglish
Pages (from-to)256-260
Number of pages5
JournalMaterials Chemistry and Physics
Volume98
Issue number2-3
DOIs
Publication statusPublished - Aug 1 2006
Externally publishedYes

ASJC Scopus Subject Areas

  • General Materials Science
  • Condensed Matter Physics

Keywords

  • Chemical vapor deposition
  • Electron microscopy
  • Fullerenes

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