Title:
DOUBLE-WALLED CARBON NANOTUBE, ALIGNED DOUBLE-WALLED CARBON NANOTUBE BULK STRUCTURE, AND PROCESS FOR PRODUCTION OF THE CARBON NANOTUBE OR THE BULK STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2007/061143
Kind Code:
A1
Abstract:
Disclosed is an aligned double-walled carbon nanotube bulk structure which
comprises multiple aligned double-walled carbon nanotubes and has a height
of 0.1 μm or more. In the bulk structure, the double-walled carbon nanotubes
can be produced by chemical vapor deposition (CVD) in the presence of a metal catalyst
having a controlled particle size and a controlled thickness, preferably in
the presence of water. It becomes possible to provide a double-walled carbon
nanotube which is free from the catalyst contamination, has a high purity, is
easy to control the alignment or growth, can be formed through the formation of
a bulk structure, and has an excellent electron-emitting property (particularly,
a bulk structure of aligned, double-walled carbon nanotubes) and also provide
a technique for production of the carbon nanotube.
Inventors:
HATA KENJI (JP)
YAMADA TAKEO (JP)
YUMURA MOTOO (JP)
IIJIMA SUMIO (JP)
YAMADA TAKEO (JP)
YUMURA MOTOO (JP)
IIJIMA SUMIO (JP)
Application Number:
PCT/JP2006/324127
Publication Date:
May 31, 2007
Filing Date:
November 27, 2006
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
HATA KENJI (JP)
YAMADA TAKEO (JP)
YUMURA MOTOO (JP)
IIJIMA SUMIO (JP)
HATA KENJI (JP)
YAMADA TAKEO (JP)
YUMURA MOTOO (JP)
IIJIMA SUMIO (JP)
International Classes:
C01B31/02; B01J20/20; B82B1/00; B82B3/00; B82Y30/00; B82Y40/00; B82Y99/00; H01G11/22; H01G11/24; H01G11/26; H01G11/36; H01G11/86; H01J1/304; H01J31/12; H01M4/02; H01M4/133; H01M4/587; H01M4/86; H01M4/88; H01M10/05; H01M12/06; H01M4/96
Domestic Patent References:
| WO2002030816A1 | 2002-04-18 | |||
| WO2004083113A1 | 2004-09-30 |
Foreign References:
| JP2003500325A | 2003-01-07 | |||
| JP2004277279A | 2004-10-07 | |||
| JP2005097024A | 2005-04-14 | |||
| JP2004182548A | 2004-07-02 |
Other References:
NAGAO H. ET AL.: "Fabrication of Dense Carbon Nanotube Film Using Microwave Plasma-Enhanced CVD", PROCEEDINGS OF PLASMA SCIENCE SYMPOSIUM 2005 AND THE 22ND SYMPOSIUM ON PLASMA PROCESSING, 26 January 2005 (2005-01-26), pages 367 - 368, XP002997550
HATA K. ET AL.: "Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes", SCIENCE, vol. 306, 19 November 2004 (2004-11-19), pages 1362 - 1364, XP002993037
REN W. ET AL.: "Aligned Double-Walled Carbon Nanotube Long Ropes with a Narrow Diameter Distribution", JOURNAL OF PHYSICAL CHEMISTRY B, vol. 109, no. 15, 21 April 2005 (2005-04-21), pages 7169 - 7173, XP003013361
ENDO M. ET AL.: "'Buckypaper' from coaxial nanotubes", NATURE, vol. 433, 3 February 2005 (2005-02-03), pages 476, XP003013362
HATA K. ET AL.: "Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes", SCIENCE, vol. 306, 19 November 2004 (2004-11-19), pages 1362 - 1364, XP002993037
REN W. ET AL.: "Aligned Double-Walled Carbon Nanotube Long Ropes with a Narrow Diameter Distribution", JOURNAL OF PHYSICAL CHEMISTRY B, vol. 109, no. 15, 21 April 2005 (2005-04-21), pages 7169 - 7173, XP003013361
ENDO M. ET AL.: "'Buckypaper' from coaxial nanotubes", NATURE, vol. 433, 3 February 2005 (2005-02-03), pages 476, XP003013362
Attorney, Agent or Firm:
NISHIZAWA, Toshio (11-1 Minami-Aoyama 6-chom, Minato-ku Tokyo 62, JP)
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