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Seo, Kwanyong
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N-doped double-walled carbon nanotubes synthesized by chemical vapor deposition

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Title
N-doped double-walled carbon nanotubes synthesized by chemical vapor deposition
Other Titles
N-doped double-walled carbon nanotubes synthesized by chemical vapor deposition
Author
Kim, Shin YoungLee, JinyoungNa, Chan WoongPark, JeungheeSeo, KwanyongKim, Bongsoo
Keywords
RAY PHOTOELECTRON-SPECTROSCOPY; ELECTRONIC-STRUCTURE; RAMAN-SCATTERING; ARC-DISCHARGE; NITROGEN; BUNDLES; NITRIDE; GROWTH
Issue Date
2005-09
Publisher
ELSEVIER SCIENCE BV
Citation
CHEMICAL PHYSICS LETTERS, v.413, no.4-6, pp.300 - 305
Abstract
High-purity N-doped double-walled carbon nanotubes (DWNTs) were synthesized by chemical vapor deposition, and investigated by synchrotron X-ray photoelectron spectroscopy (XPS). As the photon energy increases, the N content increases up to 3 at.%, indicating that the inner wall contains the higher N content than the outer wall. The graphite-like and pyridine-like N structures exist as about 1:1 ratio. The self-consistent charge-density-functional-based tight-binding calculation shows that the N-doping of the inner wall yields the more stable DWNT than that of the outer wall, which supports the XPS result. (c) 2005 Elsevier B.V. All rights reserved
URI
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DOI
10.1016/j.cplett.2005.07.093
ISSN
0009-2614
Appears in Collections:
ECHE_Journal Papers
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