Patent ID: 8505478
Filing Date: 2013-08-13
Classification: B82Y,C01B

Abstract:
1. A high-efficiency synthesis apparatus of a carbon nanostructure, which is configured to produce a carbon nanostructure using a catalysis by feeding a carrier gas and a raw material gas to a reaction chamber, the apparatus comprising: a two-way valve configured to feed, to the reaction chamber, the carrier gas which is controlled to be of a selected flow quantity; a high-speed three-way valve which instantaneously feeds or interrupts the raw material gas which is controlled to be of a selected flow quantity, with respect to the reaction chamber, the high-speed three-way valve being openable and closeable within a time shorter than 0.1 seconds; and a merge section downstream of the high-speed three-way valve and the two-way valve, the merge section being configured to introduce the raw material gas fed from the high-speed three-way valve to the carrier gas fed from the two-way valve, wherein, a source of catalyst is in the reaction chamber, a controller configured to control, at the time of interrupting the raw material gas, the high-speed three-way valve to be instantaneously switched to exhaust position so that feed of the raw material gas is interrupted, and at the time of feeding the raw material gas, the high-speed three-way valve to be instantaneously switched to feed position so that the raw material gas of the selected flow quantity is fed to the reaction chamber, and the carbon nanostructure is selected from the group consisting of a carbon nanotube, a carbon nanotube with beads, a brush-type carbon nanotube, a carbon nanotwist, a carbon nanocoil, and a fullerene in spherical shell form.