Title:
単一壁のカーボンナノチューブ-セラミック複合体および使用方法
Document Type and Number:
Japanese Patent JP2006524631
Kind Code:
A
Abstract:
Composites of single-walled carbon nanotubes (SWNTs) and a ceramic support (e.g., silica) comprising a small amount of catalytic metal, e.g., cobalt and molybdenum, are described. The particle comprising the metal and ceramic support is used as the catalyst for the production of the single-walled carbon nanotubes. The nanotube-ceramic composite thus produced can be used "as prepared" without further purification providing significant cost advantages. The nanotube-ceramic composite has also been shown to have improved properties versus those of purified carbon nanotubes in certain applications such as field emission devices. Use of precipitated and fumed silicas has resulted in nanotube-ceramic composites which may synergistically improve the properties of both the ceramic (e.g., silica) and the single-walled carbon nanotubes. Addition of these composites to polymers may improve their properties. These properties include thermal conductivity, thermal stability (tolerance to degradation), electrical conductivity, modification of crystallization kinetics, strength, elasticity modulus, fracture toughness, and other mechanical properties. Other nanotube-ceramic composites may be produced based on AL2O3, MgO and ZrO2, for example, which are suitable for a large variety of applications.
Inventors:
Barzano, Leandro
Resasco, Daniel E.
Resasco, Daniel E.
Application Number:
JP2006513371A
Publication Date:
November 02, 2006
Filing Date:
April 28, 2004
Export Citation:
Assignee:
Barzano, Leandro
Resasco, Daniel E.
Resasco, Daniel E.
International Classes:
C01B31/02; A47B23/00; B32B5/16; B82B1/00; B82B3/00; C01B31/00; D01F9/12; H01J1/304; H01M4/96; C04B
Domestic Patent References:
| JP2003500326A | 2003-01-07 |
Foreign References:
| US6346189B1 | 2002-02-12 | |||
| WO2000017102A1 | 2000-03-30 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita