Thermogravimetric Analysis of the Oxidation of Multiwalled Carbon Nanotubes: Evidence for the Role of Defect Sites in Carbon Nanotube Chemistry

David Bom, Rodney Andrews, David Jacques, John Anthony, Bailin Chen, Mark S. Meier, John P. Selegue

Research output: Contribution to journalArticlepeer-review

425 Citations (SciVal)

Abstract

Thermogravimetric analysis (TGA) has demonstrated that multiwalled nanotubes (MWNTs) annealed at 2200 to 2800°C are more air stable than as-produced MWNTs, diamond, graphite, and annealed diamond. The annealed MWNTs are similar in stability to annealed graphite. Defect sites along the walls and at the ends of the raw MWNTs facilitate the thermal oxidative destruction of the nanotubes. Thermal annealing removes these defects, thereby providing MWNTs with enhanced air stability.

Original languageEnglish
Pages (from-to)615-619
Number of pages5
JournalNano Letters
Volume2
Issue number6
DOIs
StatePublished - Jun 2002

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry (all)
  • Materials Science (all)
  • Condensed Matter Physics
  • Mechanical Engineering

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