CARBON NANOWALL WITH CONTROLLED STRUCTURE AND METHOD OF CONTROLLING STRUCTURE OF CARBON NANOWALL

Title:

CARBON NANOWALL WITH CONTROLLED STRUCTURE AND METHOD OF CONTROLLING STRUCTURE OF CARBON NANOWALL

Document Type and Number:

WIPO Patent Application WO/2008/013309

Kind Code:

A1

Abstract:

A method of controlling the structure of carbon nanowall (CNW) in which the interwall spacing of carbon nanowall (CNW) is varied so as to control the surface area thereof or control the crystallinity thereof, thereby enhancing the corrosion resistance at high potential; and a highly crystalline carbon nanowall (CNW) and carbon nanowall (CNW) of large surface area with controlled structure. There are provided (1) carbon nanowall characterized by having a wall surface area of 50 cm2/cm2-substrate·μm or greater, (2) carbon nanowall characterized by having a crystallinity such that the D-band half value width of Raman spectrum measured with an irradiation laser wavelength of 514.5 nm is 85 cm-1 or less; and (3) carbon nanowall characterized by having not only a wall surface area of 50 cm2/cm2-substrate·μm or greater but also a crystallinity such that the D-band half value width of Raman spectrum measured with an irradiation laser wavelength of 514.5 nm is 85 cm-1 or less.

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Inventors:

HORI MASARU (JP)
HIRAMATSU MINEO (JP)
KANO HIROYUKI (JP)
SUGIYAMA TORU (JP)
HAMA YUICHIRO (JP)

Application Number:

PCT/JP2007/065036

Publication Date:

January 31, 2008

Filing Date:

July 25, 2007

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
HORI MASARU (JP)
HIRAMATSU MINEO (JP)
KANO HIROYUKI (JP)
SUGIYAMA TORU (JP)
HAMA YUICHIRO (JP)

International Classes:

B01J21/18; C01B31/02; B01J32/00; H01M4/96

Domestic Patent References:

WO2005021430A1

2005-03-10

Foreign References:

JP2005097113A	2005-04-14
JP2005097113A	2005-04-14

Other References:

KURITA S. ET AL.: "Raman spectra of carbon nanowalls grown by plasma-enhanced chemical vapor deposition", JOURNAL OF APPLIED PHYSICS, vol. 97, no. 10, 2005, pages 104320-1 - 104320-5, XP003020846
SATO G. ET AL.: "Fast Growth of Carbon Nanowalls from pure Methane using Helicon Plasma-Enhanced Chemical vapor Deposition", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 45, no. 6A, 15 June 2006 (2006-06-15), pages 5210 - 5212, XP003020847
HIRAMATSU M. ET AL.: "Plasma CVD o Mochiita Carbon Nanowall no Seicho", JOURNAL OF THE JAPANESE ASSOCIATION OF CRYSTAL GROWTH, vol. 32, no. 5, 2005, pages 371 - 376, XP003020848
See also references of EP 2048113A4

Attorney, Agent or Firm:

HIRAKI, Yusuke et al. (19F 3-20, Toranomon 4-chome,Minato-k, Tokyo 01, JP)

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