FIELD: purification of single-walled carbon nanotubes from metal impurities.
SUBSTANCE: invention can be used in such areas as polymers, ceramics, lithium-ion batteries, laser physics, nanoelectronics, intercalation of individual atoms and molecules for their safe transportation, drug delivery, etc. The method for cleaning single-walled carbon nanotubes includes the oxidation of the original tubes in air in the temperature range of 350-450°C and treatment with an aqueous solution of ascorbic acid. The problem to be solved by the present invention is the development of a method for purification of single-walled carbon nanotubes without the use of toxic reagents.
EFFECT: nanotubes free from foreign inclusions with an intact structure.
2 cl, 4 dwg
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