Three‐Dimensional Internal Order in Multiwalled Carbon Nanotubes Grown by Chemical Vapor Deposition

Abstract

Unprecedented levels of internal order are obtained in multiwalled carbon nanotubes grown by chemical vapor deposition with a nitrogen-doping level of 3%. The tubes are much more ordered than pure carbon equivalents, and are also externally straighter and thicker. The graphene layers are either pure zigzag or pure armchair with spacings close to that of graphite. hkl reflections indicate three-dimensional crystallographic register (see Figure and inside cover). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2005/c1791_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.