Linear and spiral forms of longitudinal cuts in graphitized N-doped multiwalled carbon nanotubes (g-N-MWCNTs)

Mark S. Meier, John P. Selegue, Kelby B. Cassity, Aman Preet Kaur, Dali Qian

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Nitrogen-containing multiwalled nanotubes (N-MWCNTs), formed by CVD from a nitrogen-containing feedstock have a 'bamboo' structure in which the axes of the graphene planes are not parallel to the axis of the nanotube and the core is periodically bridged. We find that thermal and chemical treatment of these materials can produce nanotubes that have been cut longitudinally in either a linear or in a spiral manner. In addition, these longitudinally cut nanotubes can be partially or fully unrolled by sonication in an aqueous surfactant, producing graphite platelets as well as narrow structures that could be thin graphite ribbons or very narrow, intact N-MWCNTs. These different morphologies of graphite, available from one source, suggest that there are multiple structures of N-MWCNTs present, few as simple as stacked cups or nested scrolls.

Original languageEnglish
Article number334219
JournalJournal of Physics Condensed Matter
Volume22
Issue number33
DOIs
StatePublished - Aug 4 2010

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics

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