Title:
METHOD OF SELF-ASSEMBLY GROWING CARBON NANOTUBESS BY CHEMICAL-VAPOR-DEPOSITION WITHOUT THE USE OF METAL CATALYST
Document Type and Number:
WIPO Patent Application WO/2009/135344
Kind Code:
A1
Abstract:
A method of self-assembly growing carbon nanotubes by chemical-vapor-deposition without the use of metal catalyst is provided, wherein a horizontal vacuum-tube type high-temperature furnace is heated to 940~980 °C and the temperature is held under the protection of a carrier gas, then a mixed gas of carbon source gas and carrier gas is fed, The decomposed product of the carbon source gas is deposited on a substrate in the low temperature area of the high-temperature furnace, and hence to self-assembly grow carbon nanotubes. The said carbon source gas is a carbon-containing material in gaseous state. The said carrier gas is one or two or more selected from nitrogen, hydrogen, and argon. Since the use of metal catalyst is omitted, the obtained carbon nanotubes contain no metal catalyst; therefor the purity of the product is improved with a low cost, and the product can be produced continuously.
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Inventors:
TANG YUANHONG (CN)
LI XIAOCHUAN (CN)
LIN LIANGWU (CN)
XU HAIFENG (CN)
HUANG BOYUN (CN)
LI XIAOCHUAN (CN)
LIN LIANGWU (CN)
XU HAIFENG (CN)
HUANG BOYUN (CN)
Application Number:
PCT/CN2008/001207
Publication Date:
November 12, 2009
Filing Date:
June 20, 2008
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
TANG YUANHONG (CN)
LI XIAOCHUAN (CN)
LIN LIANGWU (CN)
XU HAIFENG (CN)
HUANG BOYUN (CN)
TANG YUANHONG (CN)
LI XIAOCHUAN (CN)
LIN LIANGWU (CN)
XU HAIFENG (CN)
HUANG BOYUN (CN)
International Classes:
C01B31/02; B82B3/00; C23C16/26
Foreign References:
| JP2005001936A | 2005-01-06 | |||
| US20050183663A1 | 2005-08-25 | |||
| CN101007631A | 2007-08-01 |
Attorney, Agent or Firm:
CHANGSHA RONGZHI PATENT AGENCY (Changsha, Hunan 1, CN)
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