High temperature rearrangement of disordered nanoporous carbon at the interface with single wall carbon nanotubes

Bo Yi, Ramakrishnan Rajagopalan, Christopher L. Burket, Henry C. Foley, Xiaoming Liu, Peter C. Eklund

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Composites of nanoporous carbon and single wall carbon nanotubes were heat treated in vacuum at temperatures ranging from 1200 to 2000 °C. The resultant interface between the two allotropes of carbon was characterized using high resolution transmission electron microscopy and Raman spectroscopy. At the interface between the nanoporous carbon and the nanotube, the nanotube served as a template for ordering and orientation of the normally disordered nanoporous carbon along the nanotube axis during high temperature treatment. When annealed at 2000 °C, the nanoporous carbon transformed to graphitic nanoribbon which in turn crushed the nanotube to form a nanoscale carbon "bulb". This result is interesting since at these temperatures, the native nanoporous carbon is well known to resist ordering and is therefore referred to as being a "non-graphitizing" carbon. That the nanotube should act as a template for the incipient graphitization suggests that bonding and strength for load transfer may be developed at these interfaces.

Original languageEnglish (US)
Pages (from-to)2303-2309
Number of pages7
JournalCarbon
Volume47
Issue number10
DOIs
StatePublished - Aug 2009

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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