Sidewall-functionalized carbon nanotubes, and methods for...

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

Reexamination Certificate

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C423S415100, C423S460000, C423S447100, C977S745000, C977S748000, C977S847000

Reexamination Certificate

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07122165

ABSTRACT:
The invention provides a method of functionalizing the sidewalls of a plurality of carbon nanotubes with oxygen moieties, the method comprising: exposing a carbon nanotube dispersion to an ozone/oxygen mixture to form a plurality of ozonized carbon nanotubes; and contacting the plurality of ozonized carbon nanotubes with a cleaving agent to form a plurality of sidewall-functionalized carbon nanotubes.

REFERENCES:
patent: 6872681 (2005-03-01), Niu et al.
Cai, L. et al., “Ozonation of Single-Walled Carbon Nanotubes and Their Assemblies on Rigid Self-Assmbled Monolayers,” Sep. 5, 2002, American Chemical Society, Chemistry of Materials, vol. 14, pp. 4235-4241.
Malhotra, R., et al., “Ozonolysis of [60]Fullerene,” 1994, Journal of the Chemical Society, Chemical Communications, vol. 11, pp. 1339-1340.
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Mawhinney et al., “Infrared Spectral Evidence for the Etching of Carbon Nanotubes: Ozone Oxidation at 298 K”J. Am. Chem. Soc., 122:2383-2384 (Feb. 29, 2000).
Bahr et al., “Covalent chemistry of single-wall carbon nanotubes”J. Mater. Chem., 12:1952-1958 (May 1, 2002).
Cai et al., “Ozonation of Single-Walled Carbon Nanotubes and their Assemblies on Rigid Self-Assembled Monolayers”Chem Mater., 14:4235-4241 (Sep. 5, 2002).

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