Patent ID: 7396798

Claim:
A method of preparing a rigid porous carbon structure having a surface area greater than at least 800 m 2 /gm, comprising the steps of: (a) dispersing a plurality of single walled carbon nanotubes in the form of aggregate particles in a medium to form a suspension; said medium including a dispersant selected from the group consisting of alcohols, DNA, glycerin, surfactants, polyethylene glycol, polyethylene imines and polypropylene glycol, (b) sonicating said suspension to disaggregate said aggregate particles into a plurality of individual single walled carbon nanotubes, (c) mixing said suspension with a gluing agent, (d) extruding said suspension and calcining to form said rigid structure of intertwined single walled carbon nanotubes bonded at the nanotubes intersections within the structure.