Isolation and purification of single walled carbon nanotube structures
AssigneeGB Tech, Inc.
InventorsPavel Nikolaev, Sivaram Arepalli, Mark S.F. Clarke, Daniel L. Feeback
Life of this patent
Estimating the term…
Abstract
Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures.
Claims30
A method for separating carbon nanotubes from contaminants comprising the steps of:
- introducing nanotube-containing material including contaminants into an aqueous medium containing at least one dispersal agent to create a nanotube solution;
- agitating the solution to coat exposed surfaces of the nanotubes with dispersal agent to form a dispersed nanotube solution;
- and
- removing excess dispersal agent medium from the dispersed nanotube solution.
A method for transforming a carbon nanotube bundle comprised of a plurality of carbon nanotubes into discrete, individual carbon nanotube filaments comprising the steps of introducing the nanotube bundle into an aqueous medium containing an effective amount of a dispersal agent to substantially disperse the nanotube bundle into individual filaments in solution.
A method of solubilizing a carbon nanotube bundle into individual carbon nanotube filaments in an aqueous medium comprising introducing the nanotube bundle into an aqueous medium containing an effective amount of a dispersal agent to substantially disperse the nanotube bundle into individual filaments in solution.
Dependencies are inferred from the claim text.