Method for manufacturing carbon nanotubes

Details Method for manufacturing carbon nanotubes Method for manufacturing carbon nanotubes

2006-07-11

2009-12-01

Johnson, Edward M (Department: 1793)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447500

Reexamination Certificate

active

07625544

ABSTRACT:
A method for manufacturing open-ended carbon nanotubes is described. The method includes steps of: providing a substrate having a catalyst layer formed thereon; placing the substrate in a reaction chamber; introducing a carbon source gas containing carbon element into the reaction chamber for growing carbon nanotubes form the catalyst layer; promptly reducing a concentration of the carbon source gas when the growth of carbon nanotubes in process, thereby ceasing the growth of the carbon nanotubes instantly; and separating the carbon nanotubes from the catalyst layer.

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