Title:
PROCESS FOR CARBON NANOSTRUCTURE PRODUCTION CONDUCTING CONTROL OF CATALYST PARTICLE DIAMETER, PRODUCTION APPARATUS THEREFOR, AND CARBON NANOSTRUCTURE
Document Type and Number:
WIPO Patent Application WO/2006/013706
Kind Code:
A1
Abstract:
A process for producing a carbon nanostructure, comprising effecting contact of a raw gas with catalyst microparticles, while allowing them to flow, in a reactor furnace, wherein a high-pressure pulse gas is instantaneously blown to the catalyst microparticles to thereby float the same, then the floating of catalyst microparticles is discontinued so as to allow the catalyst microparticles to freely fall, and selection of particle diameter is carried out, and wherein catalyst microparticles having been selected in accordance with appropriate particle diameter control thus performed is transferred and fed into the reactor furnace. By this process, a carbon nanostructure can be continuously produced stably at low cost without being influenced by a dispersion of particle diameter inherent in catalyst raw materials. Further, there is provided a carbon nanostructure comprised of a curly carbon nanotube of 1 to 300 nm diameter, the curliness being one with a three-dimensional configuration having bending points irregularly incorporated therein.
Inventors:
NAKAYAMA YOSHIKAZU (JP)
NAGASAKA TAKESHI (JP)
SAKAI TORU (JP)
GOTO TOSHIKI (JP)
TSUCHIYA HIROYUKI (JP)
SHIONO KEISUKE (JP)
OKAZAKI NOBUHARU (JP)
NAGASAKA TAKESHI (JP)
SAKAI TORU (JP)
GOTO TOSHIKI (JP)
TSUCHIYA HIROYUKI (JP)
SHIONO KEISUKE (JP)
OKAZAKI NOBUHARU (JP)
Application Number:
PCT/JP2005/012909
Publication Date:
February 09, 2006
Filing Date:
July 13, 2005
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
OSAKA PREFECTURE (JP)
TAIYO NIPPON SANSO CORP (JP)
OTSUKA CHEMICAL CO LTD (JP)
NISSIN ELECTRIC CO LTD (JP)
DAIKEN CHEMICAL CO LTD (JP)
NAKAYAMA YOSHIKAZU (JP)
NAGASAKA TAKESHI (JP)
SAKAI TORU (JP)
GOTO TOSHIKI (JP)
TSUCHIYA HIROYUKI (JP)
SHIONO KEISUKE (JP)
OKAZAKI NOBUHARU (JP)
OSAKA PREFECTURE (JP)
TAIYO NIPPON SANSO CORP (JP)
OTSUKA CHEMICAL CO LTD (JP)
NISSIN ELECTRIC CO LTD (JP)
DAIKEN CHEMICAL CO LTD (JP)
NAKAYAMA YOSHIKAZU (JP)
NAGASAKA TAKESHI (JP)
SAKAI TORU (JP)
GOTO TOSHIKI (JP)
TSUCHIYA HIROYUKI (JP)
SHIONO KEISUKE (JP)
OKAZAKI NOBUHARU (JP)
International Classes:
D01F9/127; C01B31/02; D01F9/133
Foreign References:
| JPH03104927A | 1991-05-01 | |||
| JP2003213530A | 2003-07-30 | |||
| JP2001526164A | 2001-12-18 | |||
| JP2005232667A | 2005-09-02 |
Other References:
QIAN W. ET AL: "Effect of adding nickel to iron-alumina catalysts on the morphology of as-grown carbon nanotubes", CARBON, vol. 41, 2003, pages 2487 - 2493, XP004458776
PAN L. ET AL: "Fe-In-Sn-O Kongo Shokubai de Sakusei shita Carbon Nonocoil no Denkai Hoshutsu Tokusei", JAPAN HARCOPY 2003 RONBUNSHU, 2003, pages 143 - 146, XP003006485
KICHAMBARE P.D. ET AL: "Thin film metallic catalyst coatings for the growth of multiwalled carbon nanotubes by pyrolysis of xylene", CARBON, vol. 40, 2002, pages 1903 - 1909, XP004371640
QIN Y. ET AL: "Helical carbon nanofibers prepared by pyrolysis of acetylene with a catalyst derived from the decomposition of copper tartrate", CARBON, vol. 41, 2003, pages 3063 - 3074, XP004470649
THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN, CHEMICAL ENGINEERING OF JAPAN BENRAN, 25 February 1999, pages: 856 - 861, XP003006486
See also references of EP 1790613A4
PAN L. ET AL: "Fe-In-Sn-O Kongo Shokubai de Sakusei shita Carbon Nonocoil no Denkai Hoshutsu Tokusei", JAPAN HARCOPY 2003 RONBUNSHU, 2003, pages 143 - 146, XP003006485
KICHAMBARE P.D. ET AL: "Thin film metallic catalyst coatings for the growth of multiwalled carbon nanotubes by pyrolysis of xylene", CARBON, vol. 40, 2002, pages 1903 - 1909, XP004371640
QIN Y. ET AL: "Helical carbon nanofibers prepared by pyrolysis of acetylene with a catalyst derived from the decomposition of copper tartrate", CARBON, vol. 41, 2003, pages 3063 - 3074, XP004470649
THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN, CHEMICAL ENGINEERING OF JAPAN BENRAN, 25 February 1999, pages: 856 - 861, XP003006486
See also references of EP 1790613A4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (2-6, Tenjinbashi 2-chome Kita,, Kita-ku, Osaka-sh, Osaka, JP)
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