| 主权项 |
1. A method for enriching specific species of carbon nanotubes, comprising:
contacting a composition of carbon nanotubes with one or more quinone compounds; reacting the carbon nanotubes with the quinone compounds; and separating the carbon nanotubes reacted with the quinone compounds from the unreacted carbon nanotubes, wherein the one or more quinone compounds are of Formula (I): wherein R1, R2, R3, and R4 are each independently selected from the group consisting of H, halogen, —CN, —OR, —N3, —C(O)OR, —C(O)R, —C(O)NRR′, —NRC(O)R, —NRR′, —SOR, —SO2R, —NO2, a substituted or unsubstituted C1-6 alkyl group, a substituted or unsubstituted C2-6 alkenyl group, and a substituted or unsubstituted C2-6 alkynyl group, or R1 and R2, and/or R3 and R4 combine to form a substituted or unsubstituted ring, wherein R and R′ are each independently selected from the group consisting of H and C1-6 alkyl; provided that the compound is not 2,3-dichloro-5,6-dicyano-1,4,-benzoquinone or tetrachlorobenzoquinone; wherein the contacting step comprises suspending the composition of carbon nanotubes in an organic solvent containing the one or more quinone compounds; and wherein the reacting step comprises incubating the suspension under conditions that allow the quinone compounds to form radicals that react with a specific species of the carbon nanotubes. |
