Process for producing single wall nanotubes using unsupported metal catalysts and single wall nanotubes produced according to this method
First Claim
1. A method for producing single walled carbon nanotubes comprising the steps of:
- (a) heating a reactor to at least 900°
C.,(b) providing a first argon flow into said reactor,(c) replacing said first argon flow with a CO flow,(d) injecting into said reactor ground Mo(CO)6 particles,(e) conducting catalytic decomposition of CO in said reactor,(f) replacing said CO flow with a second argon flow, and(g) cooling said reactor to room temperature.
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Accused Products
Abstract
A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas comprising one or more gaseous carbon compounds, each having one to six carbon atoms and only H, O, N, S or Cl as hetero atoms, optionally admixed with hydrogen, and a gas phase metal containing compound which is unstable under reaction conditions for said decomposition, and which forms a metal containing catalyst which acts as a decomposition catalyst under reaction conditions; and then conducting said decomposition reaction under decomposition reaction conditions, thereby producing said nanotubes.
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Citations
1 Claim
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1. A method for producing single walled carbon nanotubes comprising the steps of:
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(a) heating a reactor to at least 900°
C.,(b) providing a first argon flow into said reactor, (c) replacing said first argon flow with a CO flow, (d) injecting into said reactor ground Mo(CO)6 particles, (e) conducting catalytic decomposition of CO in said reactor, (f) replacing said CO flow with a second argon flow, and (g) cooling said reactor to room temperature.
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Specification