MANUFACTURE OF CARBON NANOTUBE AND CARBON NANOHORN, MANUFACTURE OF ARC SOOT CONTAINING CARBON NANOTUBE OR CARBON NANOHORN AND CARBON MATERIAL USED FOR MANUFACTURING RAW MATERIAL FOR SYNTHESIZING CARBON NANOBALLOON

摘要

PROBLEM TO BE SOLVED: To provide a carbon material for manufacturing a carbon nanotube and a carbon nanohorn capable of increasing a yield of the carbonnanotube and the carbon nanohorn and also capable of obtaining a high-purity product and to provide the carbon material used for manufacturing an arc soot containing the carbon nanotube or the carbon nanohorn and used for manufacturing a raw material for synthesizing a nanoballoon. SOLUTION: In a graphitized material obtained by treating at a high temperature a formed body obtained by compounding a coal-based coke powder having an average particle size of 2-15μm as an aggregate and pitch or resin as a binder and forming the mixture or a formed body obtained by forming the aggregate composed of a mesophase, a specific resistance of the graphitized material at room tempereture is≤20-8μΩm, a bulk density is 1.85-1.95 g/cm3, a bending strength is≥50 MPa and a gas transmittance is≤0.10 cm2/sec. COPYRIGHT: (C)2006,JPO&NCIPI