METHOD FOR TREATING SINGLE WALL CARBON NANOTUBE
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United States of America Patent
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Oct 15, 2015
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Jul 27, 2012
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Jul 27, 2012
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Provided is a method for treating single-walled carbon nanotube, comprising: (1) allowing single-walled carbon nanotubes to contact with a surfactant and a dispersant sequentially in the present of a solvent, to obtain highly dispersed single-walled carbon nanotubes in which the content of single dispersed single-walled carbon nanotubes is not lower than 50 wt %, wherein, the single-walled carbon nanotubes can be dispersed in the solvent, and the surfactant and dispersant can be dissolved in the solvent; (2) employing density gradient centrifugation to sort the highly dispersed single-walled carbon nanotubes obtained in step (1). This method can effectively separate single-walled carbon nanotubes with different structural properties.
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