Type

Journal Article

Authors

Justin D. Holmes
Michael A. Morris
J Andreas Larsson
Peter G Fleming
Sarah L T Jones
Zhonglai Li
Justin P O'Byrne

Subjects

Chemistry

Topics
x ray photoelectron spectroscopy nanotubes growth mechanism nitrogen binding energy raman spectroscopy density functional theory doping doped catalysts single walled nanotubes

Nitrogen-doped carbon nanotubes: growth, mechanism and structure. (2011)

Abstract Nitrogen-doped bamboo-structured carbon nanotubes have been successfully grown using a series of cobalt/molybdenum catalysts. The morphology and structure of the nanotubes were analysed by transmission electron microscopy and Raman spectroscopy. The level of nitrogen doping, as determined by X-ray photoelectron spectroscopy, was found to range between 0.5 to 2.5 at.%. The growth of bamboo-structured nanotubes in the presence of nitrogen, in preference to single-walled and multi-walled nanotubes, was due to the greater binding energy of nitrogen for cobalt in the catalyst compared to the binding strength of carbon to cobalt, as determined by density functional theory.
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Full list of authors on original publication

Justin D. Holmes, Michael A. Morris, J Andreas Larsson, Peter G Fleming, Sarah L T Jones, Zhonglai Li, Justin P O'Byrne

Experts in our system

1
Justin D. Holmes
University College Cork
Total Publications: 287
 
2
Michael A. Morris
University College Cork
Total Publications: 164