Method for growing single-wall carbon nanotubes utlizing seed molecules
First Claim
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1. A method for growing single-wall carbon nanotubes comprising:
- (a) providing seed molecules comprising segments of single-wall carbon nanotubes, wherein the single-wall carbon nanotubes are attached to active catalyst particles, and wherein the active catalyst particles comprise a Group VI metal;
(b) subjecting the seed molecules and a carbon-containing feedstock gas to conditions capable of growing single-wall carbon nanotubes;
(c) growing single-wall carbon nanotube material; and
(d) recovering the single-wall carbon nanotube material.
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Abstract
This invention relates generally to a method for growing single-wall carbon nanotube (SWNT) from seed molecules. The supported or unsupported SWNT seed materials can be combined with a suitable growth catalyst by opening SWNT molecule ends and depositing a metal atom cluster. In one embodiment, a suspension of seed particles containing attached catalysts is injected into an evaporation zone to provide an entrained reactive nanoparticle. A carbonaceous feedstock gas is then introduced into the nanoparticle stream under conditions to grow single-wall carbon nanotubes. Recovery of the product produced can be done by filtration, centrifugation and the like.
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Citations
6 Claims
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1. A method for growing single-wall carbon nanotubes comprising:
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(a) providing seed molecules comprising segments of single-wall carbon nanotubes, wherein the single-wall carbon nanotubes are attached to active catalyst particles, and wherein the active catalyst particles comprise a Group VI metal;
(b) subjecting the seed molecules and a carbon-containing feedstock gas to conditions capable of growing single-wall carbon nanotubes;
(c) growing single-wall carbon nanotube material; and
(d) recovering the single-wall carbon nanotube material. - View Dependent Claims (2)
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3. A method for growing single-wall carbon nanotubes comprising:
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(a) providing seed molecules comprising segments of single-wall carbon nanotubes, wherein the single-wall carbon nanotubes are attached to active catalyst particles;
(b) subjecting the seed molecules and a carbon-containing feedstock gas to conditions capable of growing single-wall carbon nanotubes, wherein the carbon containing feedstock gas comprises a substance selected from the group consisting of graphite particles and fullerenes;
(c) growing single-wall carbon nanotube material; and
(d) recovering the single-wall carbon nanotube material. - View Dependent Claims (4)
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5. A method for growing single-wall carbon nanotubes comprising:
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(a) providing seed molecules comprising segments of single-wall carbon nanotubes, wherein the single-wall carbon nanotubes are attached to active catalyst particles;
(b) subjecting the seed molecules and a carbon-containing feedstock gas to conditions capable of growing single-wall carbon nanotubes;
(c) growing additional single-wall carbon nanotube material; and
(d) recovering the single-wall carbon nanotube material, and wherein the single-wall carbon nanotube material comprises a felt. - View Dependent Claims (6)
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Specification