Method for growing single-wall carbon nanotubes utilizing seed molecules
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United States of America Patent
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Jun 29, 2004
Grant Date -
Jul 18, 2002
app pub date -
Dec 21, 2001
filing date -
Aug 8, 1996
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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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