초록 ▼

Disclosed is a process for purifying carbon nanotubes which has steps of 1) mixing carbon nanotubes which accompany carbon impurities with a reagent selected from a group consisting of oxidation agents, nitration agents and sulfonation agents in liquid phase, 2) reacting the carbon nanotubes with th

Disclosed is a process for purifying carbon nanotubes which has steps of 1) mixing carbon nanotubes which accompany carbon impurities with a reagent selected from a group consisting of oxidation agents, nitration agents and sulfonation agents in liquid phase, 2) reacting the carbon nanotubes with the reagent at a predetermined temperature in the liquid phase, wherein the carbon impurities except carbon nanotubes are selectively reacted to dissolve in the liquid phase, and 3) separating carbon nanotubes from which the impurities were released from the liquid phase then washing and drying it. A process for uncapping carbon nanotubes and a process for chemically modifying carbon nanotubes are also disclosed.

대표청구항 ▼

A process for purifying carbon nanotubes, comprising: combining a mixture of carbon nanotubes and accompanying carbon impurities, with a reagent selected from the group consisting of liquid phase oxidation agents, liquid phase nitration agents, and liquid phase sulfonation agents; reacting said mixt

A process for purifying carbon nanotubes, comprising: combining a mixture of carbon nanotubes and accompanying carbon impurities, with a reagent selected from the group consisting of liquid phase oxidation agents, liquid phase nitration agents, and liquid phase sulfonation agents; reacting said mixture with said reagent at a temperature effective to selectively dissolve said carbon impurities in the liquid phase, thereby releasing carbon nanotubes from said impurities; and separating said released carbon nanotubes from said liquid phase and subsequently washing and drying said carbon nanotubes.