Method for making carbon nanotubes
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United States of America Patent
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May 19, 1998
Grant Date -
N/A
app pub date -
Feb 18, 1997
filing date -
Feb 18, 1997
priority date (Note) -
Expired
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Abstract
Carbon nanotubes are produced by submerging carbonaceous anode and cathode electrodes in liquid nitrogen or other suitable liquefied materials such as helium or hydrogen, and passing a direct current between the electrodes to strike a plasma arc between the anode and cathode that erodes carbon from the anode and deposits carbon nanotubes on the surface of the cathode.
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