Method for non-reactive separation of nanomorphic carbon species
AssigneeMotorola, Inc.
InventorTimothy P. Burgin
Life of this patent
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Abstract
An exemplary method for substantially non-chemically-reactive separation of nanomorphic carbon species (150) comprises inter alia the steps of dissolving a crude nanomorphic carbon sample (100) in an organic solvent (110), centrifugation of the solvated sample (120) and decantation of the resulting supernatant (130). Disclosed features and specifications may be variously controlled, adapted or otherwise optionally modified to improve carbon nanospecies purification. An exemplary embodiment of the present invention representatively provides for non-oxidative cleaning of carbon nanotubes.
Claims17
A substantially non-reactive method for separating carbon nanotubes, comprising the steps of:
- sonicating a carbon nanotube sample including impurities in an organic solvent comprising at least one of acetone, formamide, dimethyl formamide, hexane and dimethyl sulfoxide;
- centrifugating to separate the carbon nanotube from the impurities;
- and
- at least partially decanting off the impurities and the organic solvent leaving a solid of carbon nanotubes.
A substantially non-chemically-reactive method for cleaning carbon nanotubes, comprising the steps of:
- sonicating a carbon nanotube sample in at least one of acetone and formamide;
- centrifugating said sample at about 20,000 RCF for about 30 minutes;
- and
- at least partially decanting off the supernatant.
Dependencies are inferred from the claim text.