COMPOSITION CONTAINING CARBON NANOTUBES, CATALYST FOR PRODUCING CARBON NANOTUBES, AND AQUEOUS DISPERSION OF CARBON NANOTUBES

摘要

Disclosed is a composition containing carbon nanotubes which meets all of the following conditions (1) to (4). (1) When observed via transmission electron microscopy, at least 50 out of every 100 carbon nanotubes are double-walled carbon nanotubes. (2) The carbon nanotubes have an average outer diameter in the range of 1.0 to 3.0 nm. (3) During thermogravimetric analysis under atmosphere at a temperature increase rate of 10°C/minute, a high temperature combustion peak is at 700 to 850°C, and the relationship between low temperature weight loss (TG(L)) and high temperature weight loss (TG(H)) is TG(H)/(TG(L)+TG(H))‰¥0.75. (4) The composition containing carbon nanotubes has a volume resistance value between 1.0×10 -2 ©·cm and 1.0×10 -4 ©·cm, inclusive. The disclosed composition containing carbon nanotubes primarily has double-walled carbon nanotubes with high electrical conductivity and high heat resistance.