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N-doped double-walled carbon nanotubes synthesized by chemical vapor deposition
- Alternative Title
- N-doped double-walled carbon nanotubes synthesized by chemical vapor deposition
- Author(s)
- Kim, Shin Young, Lee, Jinyoung, Na, Chan Woong, Park, Jeunghee, Seo, Kwanyong, Kim, Bongsoo
- Issued Date
- 2005-09
- 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
- Publisher
- ELSEVIER SCIENCE BV
- ISSN
- 0009-2614
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