Method for manufacturing single-walled carbon nanotubes

Details Method for manufacturing single-walled carbon nanotubes Method for manufacturing single-walled carbon nanotubes

2005-12-12

2011-11-01

McCracken, Daniel C. (Department: 1736)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S447100, C977S843000

Reexamination Certificate

active

08048396

ABSTRACT:
The objective of the present invention is to provide a process of producing single-walled carbon nanotubes, capable of producing single-walled carbon nanotubes with high purity. A process of producing single-walled carbon nanotubes according to the present invention includes feeding a feedstock including a hydrocarbon source, a metallocene, and a sulfur compound in a state of mist to a feeding zone where hydrogen gas flows at a linear velocity of 1-50 m/second wherein the amount of the hydrocarbon source is 0.01-0.2% by mass and the amount of the metallocene is 0.001-0.2% by mass based on the total amount of the hydrogen gas and the feedstock, and the amount by mass of the sulfur compound is ⅛-4 times as much as that of the metallocene; and making the hydrogen gas and the fed feedstock flow through a reaction zone with a temperature of 800-1000° C.

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