Rhenium catalysts and methods for production of single-walled carbon nanotubes
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United States of America Patent
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Issued Date -
Mar 16, 2006
app pub date -
Nov 30, 2004
filing date -
Dec 15, 2003
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Abandoned
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Abstract
The present invention is a method and catalyst for selectively producing single-walled carbon nanotubes. The catalyst comprises rhenium and a Group VIII transition metal, for example Co, which is preferably disposed on a support material to form a catalytic substrate. In the method, a carbon-containing gas is exposed to the catalytic substrate at suitable reaction conditions whereby a high percentage of the carbon nanotubes produced by the reaction is single-walled carbon nanotubes.
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