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Title:
CARBONACEOUS MATERIAL FOR HYDROGEN STORAGE AND METHOD FOR PREPARING THE SAME, AND CELL AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2001/017900
Kind Code:
A1
Abstract:
A carbonaceous material for hydrogen storage which stores hydrogen in the form of a proton is provided. Examples of such a carbonaceous material include a carbonaceous material which has a structure having a curvature and has a work function greater than 4.9 eV. Such a carbonaceous material can be formed by the arc discharge method. Usable carbonaceous materials for hydrogen storage also include a burned material comprising a polymer of a fullerene, a polymer of a fullerene through electrolytic polymerization, a derivative based on a carbonaceous material having, introduced into the material, a group capable of bonding with a proton, a carbonaceous material having a structure containing a bending part and a carbonaceous material having, carried thereon, a metal having a catalytic activity for the separation of hydrogen molecules into hydrogen atoms and of hydrogen atoms into protons and electrons. A material for hydrogen storage obtained by applying a plus voltage to a material capable of storing hydrogen and then subjecting the resultant material to a treatment under an atmosphere containing hydrogen is also usable. These materials for hydrogen storage can be used for an electric cell such as a fuel cell, an air cell and an alkaline secondary cell.

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Inventors:
SHIRAISHI MASASHI (JP)
NEGISHI EISUKE (JP)
HINOKUMA KOICHIRO (JP)
YAMADA ATSUO (JP)
KAJIURA HISASHI (JP)
TANAKA KOICHI (JP)
ATA MASAFUMI (JP)
Application Number:
PCT/JP2000/006199
Publication Date:
March 15, 2001
Filing Date:
September 11, 2000
Export Citation:
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Assignee:
SONY CORP (JP)
SHIRAISHI MASASHI (JP)
NEGISHI EISUKE (JP)
HINOKUMA KOICHIRO (JP)
YAMADA ATSUO (JP)
KAJIURA HISASHI (JP)
TANAKA KOICHI (JP)
ATA MASAFUMI (JP)
International Classes:
B01J20/20; C01B3/00; C01B31/02; H01M4/24; H01M8/04; (IPC1-7): C01B31/02; C01B31/04; C01B3/00; H01M4/24; H01M4/38; H01M10/24; H01M12/08; H01M8/04; B01J20/20
Domestic Patent References:
WO1994022176A11994-09-29
Foreign References:
JPH0831444A1996-02-02
JPH08978A1996-01-09
JPH1072201A1998-03-17
US6113673A2000-09-05
JPH11116218A1999-04-27
JPH1192126A1999-04-06
JPS6424013A1989-01-26
US5698175A1997-12-16
JPH09188506A1997-07-22
JP2000191302A2000-07-11
JP2000095509A2000-04-04
Other References:
A.C. DILLION ET AL.: "Storage of hydrogen in single-walled carbon nanotubes", NATURE, vol. 386, March 1997 (1997-03-01), pages 377 - 379, XP002935863
D.S. BETHUNE ET AL.: "Cobalt-catalysed growth of carbon nanotubes with single-atomic-layerwalls", NATURE, vol. 363, 1993, pages 605 - 607, XP002935864
KOUICHI KOMATSU ET AL.: "Fullerene 2 ryoutai C120 no gousei to kouzou kettei; bucky dumbbell no tanjo", KAGAKU TO KOGYO, vol. 51, no. 5, 1998, pages 774 - 776, XP002935865
ALAIN CHAMBERS ET AL.: "Hydrogen storage in graphite nanofibers", PHYSICAL CHEMISTRY B, vol. 102, no. 22, 1998, pages 4253 - 4256, XP002935866
A. HAMWI ET AL.: "Fluorination of carbon nanotubes", CARBON, vol. 35, no. 6, 1997, pages 723 - 728, XP002935867
Attorney, Agent or Firm:
Koike, Akira (6-4 Toranomon 2-chom, Minato-ku Tokyo, JP)
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