公开(公告)号：EP2025643A4

公开(公告)日：2012-09-12

申请号：EP07742300

申请日：2007-04-24

Applicant: NAT INST OF ADVANCED IND SCIEN

Inventor： SAITO TAKESHI ,  OHSHIMA SATOSHI ,  YUMURA MOTOO

IPC: C01B31/02 ,  D01F9/127 ,  D01F9/133 ,  D02G3/02 ,  B82Y30/00

CPC classification number: D01F9/127 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/36 ,  D01F9/133 ,  Y10T428/2918 ,  Y10T428/2982

Abstract: It relates to high purity single-walled carbon nanotubes having controlled diameter, useful as industrial materials, including high-strength carbon wire rods, particularly uniform single-walled carbon nanotubes having diameter fallen in a range of from 1.0 to 2.0 nm, and a method for producing the same efficiently, in large amount and inexpensively. The single-walled carbon nanotube obtained is characterized in that its diameter is fallen in a range of from 1.0 to 2.0 nm, and an intensity ratio IG/ID between G-band and D-band in a Raman spectrum is 200 or more. Furthermore, those single-walled carbon nanotubes are synthesized by a gas-phase flow CVD method that uses a saturated aliphatic hydrocarbon which is liquid at ordinary temperature as a first carbon source and an unsaturated aliphatic hydrocarbon which is gas at ordinary temperature as a second carbon source.