| abstract |
PROBLEM TO BE SOLVED: To provide a carbon nanotube production method for obtaining a carbon nanotube having a high purity, a large amount, a high crystallinity, or a metal in a cavity. SOLUTION: A method for producing carbon nanotubes by chemical vapor deposition (hereinafter referred to as CVD), wherein MX n (where M is an atom belonging to Group VIIIA of Mendeleev's periodic table and X is Mendeleev's periodic table). A metal compound gas (hereinafter sometimes referred to as gas A) represented by an atom belonging to group VIIB, where n = 1, 2, 3 or 4) and a carbon compound gas (hereinafter sometimes referred to as gas B). And carbon nanotubes at a temperature between 400 ° C. and 2000 ° C. [Selection figure] None |