PROCESS FOR PREPARATION OF CARBON NANOTUBES FROM VEIN GRAPHITE
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United States of America Patent
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Issued Date -
Oct 27, 2011
app pub date -
Apr 25, 2010
filing date -
Apr 25, 2010
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Abstract
A catalyst free process for manufacturing carbon nanotubes by inducing an arc discharge from a carbon anode and a carbon cathode in an inert gas atmosphere contained in a closed vessel. The process is carried out at atmospheric pressure in the absence of external cooling mechanism for the carbon cathode or the carbon anode.
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