Method and apparatus for making carbon nanotube

• Main Authors: GOTO, TOSHIKI, TANI, MASATO
• Format: Patent
• Language: Chinese; English
• Published: 16.09.2007
• Subjects: MANUFACTURE OR TREATMENT THEREOF; NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS; NANOTECHNOLOGY; PERFORMING OPERATIONS; TRANSPORTING

This invention provides a method for making a carbon nanotube with a simple apparatus. The method of the present invention is a method for making a carbon nanotube by a combustion method, which comprises the steps of: preparing a catalyst carrying powder containing a base powder having a catalyst carried on the surface of the base powder, holding the catalyst carrying powder in a flow passage hole in a porous supporting member (2) having therein a flow passage hole allowing flame to pass therethrough without causing the catalyst carrying powder to stick on the flow passage hole, disposing the porous supporting member (2) in a combustion furnace (1) having one end (1b) open, the porous supporting member (2) holding the catalyst carrying powder, producing a flame containing carbon at a burner (3) disposed at the another end (1a) of the combustion furnace (1), supplying the flame thus produced to the flow passage hole of the porous supporting member (2), and producing the carbon nanotube on the surface of the ca