Device for manufacturing and method for manufacturing oriented carbon nanotube aggregates

Patent metadata

Field	Value
Publication number	US-10046969-B2
Application number	US-201214236133-A
Country	US
Kind code	B2
Filing date	Aug 23, 2012
Priority date	Aug 24, 2011
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

An apparatus of the present invention for producing an aligned carbon nanotube includes: at least one injection section including at least one injection hole from which a raw material gas is injected to a base substrate; an exhaust vent for exhausting the raw material gas; and an exhaust section including a plurality of exhaust vents, the plurality of exhaust vents being provided so as to be closer to the exhaust vent than a plurality of injection holes included in the at least one injection hole of the at least one injection section.

First claim

The invention claimed is:

1. A method for producing an aligned carbon nanotube aggregate by synthesizing the aligned carbon nanotube aggregate on a base substrate that supports a catalyst on a surface thereof, the method comprising:
a growth step of synthesizing the aligned carbon nanotube aggregate on the base substrate by supplying a raw material gas for carbon nanotubes to the catalyst and heating at least either the catalyst or the raw material gas, the growth step being carried out by a growth unit,
the growth unit including:
at least one injection section including a plurality of pipes extending parallel to the base substrate, wherein each of the pipes is provided with an injection hole row in which a plurality of injection holes, from which the raw material gas is injected to the base substrate, are aligned;
a first exhaust vent being on one side, relative to the at least one injection section, while a mounting surface on which the base substrate is placed is on the other side relative to the injection section, for exhausting, out of a growth furnace, the raw material gas that was injected from the plurality of injection holes and then contacted the base substrate, the growth furnace storing the base substrate while the aligned carbon nanotube aggregate is being synthesized; and
an exhaust plate that includes a plurality of second exhaust vents aligned in exhaust vent rows and that exhaust, towards the first exhaust vent, the raw material gas that contacted the base substrate, the exhaust vent rows being alternatingly located between adjacent ones of the injection hole rows,
the exhaust plate being provided so as to be closer to the first exhaust vent than the plurality of pipes.

2. The method as set forth in claim 1 , wherein the supply of the raw material gas in the growth step includes supplying a catalyst activation material.

3. The method as set forth in claim 1 , wherein the pipes extend parallel to each other.

4. The method as set forth in claim 1 , wherein the plurality of injection holes face the base substrate.

5. The method as set forth in claim 1 , wherein the exhaust plate is separated from the plurality of pipes.

Assignees

• Shibuya Akiyoshi
• Hata Kenji
• Yumura Motoo
• Zeon Corp
• Aist

Inventors

• Shibuya Akiyoshi
• Hata Kenji
• Yumura Motoo

Classifications

• C01B32/162

  characterised by catalysts · CPC title

• C01B32/164

  involving continuous processes · CPC title

• B01J21/04

  Alumina · CPC title

• B01J21/185

  Carbon nanotubes (carbon nanotubes per se C01B32/15) · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title