U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of producing carbon nanotubes

Patent 6333016 Issued on December 25, 2001. Estimated Expiration Date: Icon_subject September 3, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Carbon fibrils, method for producing same and compositions containing same
Patent #: 4663230
Issued on: 05/05/1987
Inventor: Tennent

Carbon fibrils and method for producing same
Patent #: 5165909
Issued on: 11/24/1992
Inventor: Tennent, et al.

Electric arc process for making fullerenes
Patent #: 5227038
Issued on: 07/13/1993
Inventor: Smalley, et al.

Process for making fullerenes by the laser evaporation of carbon
Patent #: 5300203
Issued on: 04/05/1994
Inventor: Smalley

Method and device for the production of carbon nanotubes
Patent #: 5482601
Issued on: 01/09/1996
Inventor: Ohshima, et al.

Carbon nanostructures encapsulating palladium
Patent #: 5543378
Issued on: 08/06/1996
Inventor: Wang

Solar process for making fullerenes
Patent #: 5556517
Issued on: 09/17/1996
Inventor: Smalley

Process of isolating carbon nanotubes from a mixture containing carbon nanotubes and graphite particles
Patent #: 5560898
Issued on: 10/01/1996
Inventor: Uchida, et al.

Carbon fibrils, method for producing same and adhesive compositions containing same
Patent #: 5578543
Issued on: 11/26/1996
Inventor: Tennent, et al.

Method and device for the production of fullerenes
Patent #: 5587141
Issued on: 12/24/1996
Inventor: Ohshima, et al.

More ...

Inventors

Assignee

Application

No. 389553 filed on 09/03/1999

US Classes:

423/447.3, From gaseous reactants423/445B, Fullerene (e.g., C60, C70, etc.)423/447.1Fiber, fabric, or textile

Examiners

Primary: Hendrickson, Stuart L.

Attorney, Agent or Firm

Foreign Patent References

  • 9709272 WO. 03/09/1997
  • 9839250 WO. 09/09/1998
  • 9842620 WO. 10/09/1998
  • PCT/US00/15362 WO. 03/09/2012
  • WO 00/17102 WO. 03/09/2012

International Class

D01F 009/127

Abstract

A method for producing carbon nanotubes by contacting a carbon containing gas with metallic catalytic particles. The catalytic particles contain at least one metal from Group VIII, including for example Co, Ni, Ru, Rh, Pd, Ir, and Pt, and at least one metal from Group VIb including for example Mo, W and Cr. The metal component may be deposited on a support. Preferably, a substantial percentage of the nanotubes formed are single-walled carbon nanotubes. Further, a method for determining catalyst composition and reaction conditions for optimizing production of single-walled carbon nanotubes is also disclosed.

Other References

  • Database, Accession No. 1999-366878, Cano, "Canno KK", XP-002149235, May 25, 1999
  • B. Kitiyanan et al., "Controlled production of single-wall carbon nanotubes by catalytic decomposition of CO on bimetallic Co-Mo catlaysts", Chemical Physics Letters, 317 (2000), pp. 497-503, Feb. 4, 2000
  • V. Brotons et al., "Catalytic influence of bimetallic phases for the synthesis of single-walled carbon nanotubes", Journal of Molecular Catalysis, A: Chemical 116 (1997) 397-403
  • I. Willems et al., "Control of the outer diameter of thin carbon nanotubes synthesized by catalytic decomposition of hydrocarbons", Chemical Physics Letters, 317 (2000) pp. 71-76
  • Che et al., "Chemical Vapor Deposition Based Synthesis of Carbon Nanotubes and Nanofibers Using a Template Method", Chemical Mater. 1998, 10, pp. 260-267
  • Chen et al., "Growth of carbon nanotubes by catalytic decomposition of CH4 or CO on a Ni-MgO catalyst", Carbon vol. 35, No. 10-11, pp. 1495-1501, 1997
  • Govindaraj et al., "Carbon structures obtained by the disproportionation of carbon monoxide over nickel catalysts", Materials Research Bulletin, vol. 33, No. 4, pp. 663-667, 1998
  • Hernadi et al., "Catalytic synthesis of carbon nanotubes using zeolite support", Elsevier Science Inc. 1996
  • Fonseca et al., "Synthesis of single-and multi-wall carbon nanotubes over supported catalysts", Applied Physics A, 67, pp. 11-22, 1998
  • Hafner et al., "Catalytic growth of single-wall carbon nanotubes from metal particles", Chemical Physics Letters, 296, pp 195-202, 1998
  • Cassell et al., "Large Scale CVD Synthesis of Single-Walled Carbon Nanotubes", American Chemical Society, pp. 6483-6492, 1999
  • Krishnankutty et al.; "The Effect of Copper on the Structural Characteristics of Carbon Filaments Produced from Iron Catalyzed Decomposition of Ethylene," Catalysts Today, 37:295-307, 1997
  • Iijima, Sumio; "Helical Microtubules of Graphitic Carbon," Nature, 354:56-58, Nov. 1991
  • Iijima et al.; "Single-Shell Carbon Nanotubes of 1-nm Diameter", Nature 363:603-605, Jun. 1993
  • Bethune et al.; "Cobalt-Catalysed Growth of Carbon Nanotubes with Single-Atomic-Layer Walls," Nature, 363:605-607, Jun. 1993
  • Dai et al.; "Single-Wall Nanotubes Produced By Metal-Catalyzed Disproportionation of Carbon Monoxide," Chemical Physics Letters, 260:471-475, 1996
  • Ivanov et al.; "The Study of Carbon Nanotubes Produced by Catalytic Method," Chemical Physics Lettersm 223:329-335, 1994
  • Cheng et al.; "Large-Scale and Low-Cost Synthesis of Single-Walled Carbon Nanotubes by the Catalytic Pyrolysis of Hydrocarbons," Applied Physics Letters, 72(25):3282-3284, Jun. 25, 1998
  • Cheng et al.; "Bulk Morphology and Diameter Distribution of Single-Walled Carbon Nanotubes Synthesized by Catalytic Decomposition of Hydrocarbons," Chemical Physics Letters, 289:602-610, 1998
  • Rinzler et al.; "Large-Scale Purification of Single-Wall Carbon Nanotubes: Process, Product, and Characterization," Applied Physics A, 67:29-37, 1998
  • Journet et al.; "Large-Scale Production of Single-Walled Carbon Nanotubes by the Electric-Arc Technique," Nature, 338:756-758, Aug. 1997
  • Yakobson et al.; "Fullerene Nanotubes: C1,000,000 and Beyond, " American Scientist, 85:324-337, Jul.-Aug. 1997
  • "Unique Slough Resistant SR™ Series ESD Thermoplastic Product Line Offers Reduced Particle Contamination For Demanding Electronic Applications," "Conductive Plastics," and "Hyperion Graphite Fibrils™", Hyperion Catalysis International Website; http://www.fibrils.com/esd.ht
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
 
Sign InRegister
Username  
Password   
forgot password?