Patent ID: 9381471
Filing Date: 2016-07-05
CPC Classification: A61L,B01D,B01J,B82Y,C01B,C02F,H01G,H01M,Y02E

Claim Text:
1. A process for preparing a surfactant-free aerogel of individualized carbon nanotubes comprising the following steps carried out under an inert atmosphere: (a) reducing carbon nanotubes by an alkali metal in order to result in a polyelectrolyte salt of carbon nanotubes; (b) exposing said polyelectrolyte salt of carbon nanotubes to a solvent consisting of one or more non-aqueous surfactant-free polar aprotic solvents in order to result in a solution consisting of individualized reduced carbon nanotubes and said solvent; (c) freezing said solution of individualized reduced carbon nanotubes; and (d) sublimating the solvent, in order to form the surfactant-free aerogel of individualized carbon nanotubes.