Controlling nanotube chirality and crystallinity by doping

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The process of producing highly crystalline thick multi-walled carbon nanotubes (MWNTs) with three-dimensional (3D) order using chemical vapor deposition (CVD) was analyzed. The process involved thermolysis of toluene/1,4-diazine solutions containing 2 wt% ferrocene under an Ar atmosphere at 760°C. It was found that these tubes contain 3% nitrogen and exhibit an extremely high crystallinity similar to that of 3D graphite. It was also found that MWNTs with high 3D order can be produced at low temperature via CVD processes, where N atoms control the nanotube chirality. X-ray photoelectron spectroscopy (XPS) shows that nitrogen bonds to carbon shows a nitrile- and pyridine-like structure and N-doped carbon material shows enhanced oxidation resistance.

Original languageEnglish (US)
Pages (from-to)1032-1034
Number of pages3
JournalSmall
Volume1
Issue number11
DOIs
StatePublished - Nov 1 2005

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Nanotubes
Carbon Nanotubes
Chirality
Chemical vapor deposition
Carbon nanotubes
Nitrogen
Carbon
Doping (additives)
Photoelectron Spectroscopy
Nitriles
Thermolysis
Graphite
Oxidation resistance
Toluene
Atmosphere
Pyridine
X ray photoelectron spectroscopy
Crystalline materials
Atoms
Temperature

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • Engineering (miscellaneous)

Cite this

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title = "Controlling nanotube chirality and crystallinity by doping",
abstract = "The process of producing highly crystalline thick multi-walled carbon nanotubes (MWNTs) with three-dimensional (3D) order using chemical vapor deposition (CVD) was analyzed. The process involved thermolysis of toluene/1,4-diazine solutions containing 2 wt{\%} ferrocene under an Ar atmosphere at 760°C. It was found that these tubes contain 3{\%} nitrogen and exhibit an extremely high crystallinity similar to that of 3D graphite. It was also found that MWNTs with high 3D order can be produced at low temperature via CVD processes, where N atoms control the nanotube chirality. X-ray photoelectron spectroscopy (XPS) shows that nitrogen bonds to carbon shows a nitrile- and pyridine-like structure and N-doped carbon material shows enhanced oxidation resistance.",
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Controlling nanotube chirality and crystallinity by doping. / Terrones Maldonado, Mauricio.

In: Small, Vol. 1, No. 11, 01.11.2005, p. 1032-1034.

Research output: Contribution to journalArticle

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