Nitrogen-doped carbon nanotubes: growth, mechanism and structure
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Date
2011-10-14
Authors
O'Byrne, Justin P.
Li, Zhonglai
Jones, Sarah L. T.
Fleming, Peter G.
Larsson, J. Andreas
Morris, Michael A.
Holmes, Justin D.
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Publisher
Wiley
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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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Keywords
Catalysts , Density functional theory , Doping , Nanotubes , Nitrogen
Citation
O'Byrne, J. P., Li, Z., Jones, S. L. T., Fleming, P. G., Larsson, J. A., Morris, M. A. and Holmes, J. D. (2011) 'Nitrogen-Doped Carbon Nanotubes: Growth, Mechanism and Structure', ChemPhysChem, 12(16), pp. 2995-3001. doi: 10.1002/cphc.201100454
Copyright
© 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: (2011), Nitrogen‐Doped Carbon Nanotubes: Growth, Mechanism and Structure. ChemPhysChem, 12: 2995-3001, which has been published in final form at https://doi.org/10.1002/cphc.201100454. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.