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Carbon nanotube-carbon nanohorn complex and method for producing the same

Foreign code F110005332
File No. IAC-13-8US
Posted date Aug 31, 2011
Country United States of America
Application number 49901002
Gazette No. 20050031525
Gazette No. 7067096
Date of filing Sep 17, 2002
Gazette Date Feb 10, 2005
Gazette Date Jun 27, 2006
International application number JP2002009506
International publication number WO2003057623
Date of international filing Sep 17, 2002
Date of international publication Jul 17, 2003
Priority data
  • P2002-001803 (Jan 8, 2002) JP
  • 2002WO-JP09506 (Sep 17, 2002) WO
Title Carbon nanotube-carbon nanohorn complex and method for producing the same
Abstract (US7067096)
A novel carbon nanotube-carbon nanohorn complex produced by a method comprising step 1 for irradiating carbon nanotube placed in a liquid solvent with ultrasonic wave to disperse carbon nanotube into the liquid solvent, and step 2 for adding carbon nanohorn aggregate to the liquid solvent dispersed with carbon nanotube to thus remove the liquid solvent, whereby the surface of the carbon nanotube and the carbon nanohorn aggregate can be utilized more effectively and the availability can be enlarged.
Scope of claims [claim1]
1. A carbon nanotube-carbon nanohorn complex, which comprises a dispersion comprising carbon nanotubes and carbon nanohorns, said dispersion being aggregated to form a complex.
[claim2]
2. A method for producing a carbon nanotube-carbon nanohorn complex, comprising: a irradiating carbon nanotubes placed in a liquid solvent with ultrasonic waves to disperse the carbon nanotubes into the liquid solvent;
and
b adding carbon nanohorn aggregates to the liquid solvent in which the carbon nanotubes have been dispersed and then removing the liquid solvent.
[claim3]
3. The method for producing a carbon nanotube-carbon nanohorn complex according to claim 2, wherein the liquid solvent is an organic solvent.
[claim4]
4. The method for producing a carbon nanotube-carbon nanohorn complex according to claim 2, further comprising in a filtering the liquid solvent obtained by the step 1, in which the carbon nanotubes have been dispersed, and then putting a filtrate back to a liquid solvent.
[claim5]
5. The method for producing a carbon nanotube-carbon nanohorn complex according to claim 4, further comprising in b heating the carbon nanotubes filtered by step 1A in an oxygen atmosphere and then putting the carbon nanotubes back in a liquid solvent.
[claim6]
6. The method for producing a carbon nanotube-carbon nanohorn complex according to claim 3, further comprising in a filtering the liquid solvent obtained by the step 1, in which the carbon nanotubes have been dispersed, and then putting a filtrate back to a liquid solvent.
[claim7]
7. The method for producing a carbon nanotube-carbon nanohorn complex according to claim 6, further comprising in b heating the carbon nanotubes filtered by step 1A in an oxygen atmosphere and then putting the carbon nanotubes back in a liquid solvent.
  • Inventor, and Inventor/Applicant
  • IIJIMA SUMIO
  • YUDASAKA MASAKO
  • KOSHIO AKIRA
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • NEC
IPC(International Patent Classification)
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