Continuous growth of single-wall carbon nanotubes using...

Details Continuous growth of single-wall carbon nanotubes using... Continuous growth of single-wall carbon nanotubes using...

2003-11-03

2008-10-07

Meeks, Timothy (Department: 1792)

Coating processes

Coating by vapor, gas, or smoke

Carbon or carbide coating

C427S249300, C977S843000

Reexamination Certificate

active

07431965

ABSTRACT:
The invention relates to a chemical vapor deposition process for the continuous growth of a carbon single-wall nanotube where a carbon-containing gas composition is contacted with a porous membrane and decomposed in the presence of a catalyst to grow single-wall carbon nanotube material. A pressure differential exists across the porous membrane such that the pressure on one side of the membrane is less than that on the other side of the membrane. The single-wall carbon nanotube growth may occur predominately on the low-pressure side of the membrane or, in a different embodiment of the invention, may occur predominately in between the catalyst and the membrane. The invention also relates to an apparatus used with the carbon vapor deposition process.

REFERENCES:
Che et al. “Chemical vapor deposition based synthesis of carbon nanotubes and nanofibers using a template method” Chem. Mater. 1998, 10, pp. 260-267.
Kong et al. “Chemical vapor deposition of methane for single walled carbon nanotubes” Chem. Phys. Lett. 292 (1998) pp. 567-574.

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