Synthesis of heteroatom-doped carbon nanotubeswith double coaxial structure

摘要

Using an array of parallel and straight nano-channels of an anodic aluminum oxide (AAO) film as a template, uniform openendrncarbon nanotubes could be prepared. By using this template technique an attempt was made to fabricate carbonrnnanotubes with double coaxial structure of nitrogen-doped and undoped multiwalls. X-ray photoelectron spectroscopy (XPS)rnwas used to examine the chemical state of nitrogen on the surface of the resultant carbon nanotubes and its analysis usingrnXPS revealed that the formation of the heteroatom-doped carbon nanotubes with double coaxial structure.