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METHOD FOR PURIFYING MULTI-WALLED CARBON NANOTUBES

  • US 20150093322A1
  • Filed: 04/26/2013
  • Published: 04/02/2015
  • Est. Priority Date: 04/27/2012
  • Status: Abandoned Application
First Claim
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1. A method for purifying a multi-walled carbon nanotube, the method comprising:

  • adding a multi-walled carbon nanotube synthesized by a vapor phase process to a nitric acid aqueous solution of not lower than 0.2 mol/L so as to dissolve a catalyst metal present in the multi-walled carbon nanotube,performing solid-liquid separation to isolate solid matter, andsubjecting the solid matter to heat treatment at a temperature higher than 150°

    C.

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