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Photo-oxidation of Single-walled Carbon Nanotubes

Published online by Cambridge University Press:  26 February 2011

B Parekh ,
Thomas Debies ,
Chris Evans ,
Brian Landi ,
Ryne Raffaelle  and
Gerald Takacs
B Parekh
Affiliation:
[email protected], RIT, Chemistry and Center for Materials Science and Engineering, United States
Thomas Debies
Affiliation:
[email protected], Xerox, United States
Chris Evans
Affiliation:
[email protected], RIT, NanoPower Research Laboratories, United States
Brian Landi
Affiliation:
[email protected], RIT, NanoPower Research Laboratories, United States
Ryne Raffaelle
Affiliation:
[email protected], RIT, NanoPower Research Laboratories, United States
Gerald Takacs
Affiliation:
[email protected], RIT, Chemistry and Center for Materials Science and Engineering, United States
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Abstract

UV- and vacuum UV-assisted photo-oxidation of single-walled carbon nanotube (SWNT) paper occurred with: (1) atmospheric oxygen pressure using low-pressure Hg lamps (λ = 253.7 and 184.9 nm), (2) low oxygen pressure employing emission downstream from an Ar microwave plasma (λ = 106.7 and 104.8 nm), and (3) high pressures of He in a rotating d.c. arc that was designed to produce a spectral continuum from He excimers (λ = 58 - 110 nm). The photo-oxidized materials were characterized by x-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and Raman spectroscopy. UV photo-oxidation was demonstrated to be a controlled dry procedure for introducing oxygenated functional groups (C-O-C, C=O, O-C=O and O=C-O-C=O) on SWNTs.

Keywords

oxidationnanostructurephotochemical
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 887: Symposium Q – Degradation Processes in Nanostructured Materials , 2005 , 0887-Q01-07
Copyright
Copyright © Materials Research Society 2006

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