Production method for carbon nanotubes
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United States of America Patent
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Nov 5, 2019
Grant Date -
Apr 19, 2018
app pub date -
Dec 11, 2017
filing date -
Aug 28, 2013
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Abstract
The invention shows a production apparatus for producing carbon nanotubes by the gas-phase catalysis process, comprising: a first chamber having a growth region that is a region in which carbon nanotubes are formed; a first temperature adjustment device capable of adjusting a temperature of the growth region in the first chamber; a pressure adjustment device capable of adjusting a pressure in the first chamber; a first feed device capable of feeding a carbon source to the growth region in the first chamber; a second temperature adjustment device capable of adjusting a temperature of a solid-phase iron family element-containing material disposed in the production apparatus; and a second feed device capable of feeding a gas-phase halogen-containing substance into the production apparatus so that the iron family element-containing material of which the temperature is adjusted to a predetermined temperature by the second temperature adjustment device can react with the halogen-containing substance.
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