Title:
CATALYST STRUCTURE AND METHOD FOR PRODUCING CARBON NANOTUBE USING SAME
Document Type and Number:
WIPO Patent Application WO/2005/082528
Kind Code:
A1
Abstract:
Disclosed is a catalyst structure (21) which enables to stably obtain a carbon nanotube having a desired shape and a long fiber length at high purity. Also disclosed is a method for producing a carbon nanotube (24) using the catalyst structure (21). The catalyst structure (21) is used for producing a carbon nanotube by vapor growth of a carbon crystal, and has a crystal growth surface (22) wherein the catalyst material is formed into a ring shape or a spiral shape. A method for producing a carbon nanotube (24) uses such a catalyst structure (21). The catalyst structure (21) is a columnar body having the crystal growth surface (22) as the upper surface, and at least a part of the lateral surface of the columnar body may preferably be composed of a non-catalytic material which substantially has no catalytic action on growth of the carbon crystal.
Inventors:
HIKATA TAKESHI (JP)
Application Number:
PCT/JP2004/019538
Publication Date:
September 09, 2005
Filing Date:
December 27, 2004
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
HIKATA TAKESHI (JP)
HIKATA TAKESHI (JP)
International Classes:
B01J23/745; B01J23/75; B01J23/755; B01J23/883; B01J23/89; B01J23/94; B01J35/02; B01J23/88; B01J35/06; B01J37/00; B01J37/12; B01J37/34; B01J38/00; C01B31/02; B01J37/06; (IPC1-7): B01J23/745; B01J23/75; B01J23/755; B01J23/883; B01J35/02; B01J38/00; C01B31/02
Foreign References:
| JPH05205542A | 1993-08-13 | |||
| JP2003003337A | 2003-01-08 | |||
| JP2003206118A | 2003-07-22 |
Other References:
See also references of EP 1719556A4
Attorney, Agent or Firm:
Fukami, Hisao (Mitsui Sumitomo Bank Minamimorimachi Bldg.
1-29, Minamimorimachi 2-chome, Kita-ku, Osaka-sh, Osaka 54, JP)
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