Sidewall-functionalized carbon nanotubes, and methods for making the same
AssigneeThe Research Foundation of State University of New York
InventorsStanislaus S. Wong, Sarbajit Banerjee
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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.
Claims20
A single-walled carbon nanotube wherein about 8 to 16% of the carbon atoms on the sidewall of the nanotube have an attached oxygen moiety, wherein the attached oxygen moieties comprise a high degree of carboxylic and/or esteric moieties, wherein at least about forty percent of the oxygen moieties are carboxylic and/or esteric moieties.
A single-walled carbon nanotube wherein about 3 to 16% of the carbon atoms on the sidewall of the nanotube have an attached oxygen moiety, wherein the oxygen moieties comprise a high degree of ketonic and/or aldehydic moieties, wherein at least about thirty percent of the oxygen moieties are ketonic and/or aldehydic moieties.
A single-walled carbon nanotube wherein about 3 to 16% of the carbon atoms on the sidewall of the nanotube have an attached oxygen moiety, wherein the oxygen moieties comprise a high degree of alcoholic and/or ether moieties, wherein at least about twenty percent of the oxygen moieties are alcoholic and/or ether moieties.
A single-walled carbon nanotube comprising oxygen moieties on its sidewall wherein the nanotube comprises less than about 2 wt. % of iron, and wherein about 8 to 16% of the carbon atoms on the sidewall of the nanotube have an attached oxygen moiety.
A single-walled carbon nanotube wherein about 3 to 16% of the carbon atoms on the sidewall of the nanotube have attached functional moieties selected from the group consisting of amides, thiols, acid halides, anhydrides, lactams, imides, lactones, nitriles and mixtures thereof.
Dependencies are inferred from the claim text.