We report the vapor phase deposition of carbon nanotubes using a catalytic reaction of tungsten-organic source (C14H10O7W) and acetylene gas. The deposits were high-purity multi-walled carbon nanotubes with a hollow at the tube inside. Transmission electron microscopy study revealed that the inner graphitic layers were highly crystallized but the outer graphitic layers had waving structure. We present the large-scale production of carbon nanotubes using tungsten-based catalyst.
Bibliographical noteFunding Information:
The authors are grateful for the support provided by the Leverhulme Trust of United Kingdom through University of Oxford, by the Center for Nanotube and Nanostructured Composites at Sungkyunkwan University, and by Grant No. R-11-2000-086-0000-0 from the Center of Excellency Program of the Korea Science and Engineering Foundation.
- Catalytic processes
- High resolutions electron microscopy
- Vapour growth
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Mechanical Engineering
- Materials Chemistry
- Electrical and Electronic Engineering