Method for preparing uniform single walled carbon nanotubes
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United States of America Patent
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May 31, 2011
Grant Date -
Nov 13, 2008
app pub date -
Mar 29, 2007
filing date -
Mar 29, 2006
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Abstract
Methods of preparing single walled carbon nanotubes from a metal catalyst having deposited thereon fullerenes are provided. Fullerenes are deposited onto a metal catalyst precursor or metal catalyst. In the presence of a carbon containing gas, the metal catalyst precursor/fullerene composition is then exposed to conditions suitable for reducing the metal catalyst precursor, for subliming the fullerene and for growing single walled carbon nanotubes. The fullerenes form the end caps for the resulting single walled carbon nanotubes, which are uniform in diameter.
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