Carbonaceous nanotube, nanotube aggregate, method for manufacturing a carbonaceous nanotube

Abstract

A carbonaceous nanotube has a hollow part with an inner diameter of, at most, 5 nm, and a thickness part of, at most, 10 nm. The thickness part is formed of carbon atoms and hydrogen atoms, optionally containing at least one transition metal atom. Such a carbonaceous nanotube has excellent conductivity and excellent wettability.

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         10 : A method for manufacturing a carbonaceous nanotube, comprising: 
 mixing a transition metal compound, containing at least one transition metal atom, a sulfur compound, containing at least one sulfur atom, an organic compound containing a hydrocarbon, and a carrier gas, to obtain a raw material mixture;    supplying said raw material mixture to a reaction region maintained at a temperature of about 900˜1,300° C. inside a reaction tube;    adjusting said raw material mixture supply so that the concentration of said transition metal atom in said raw material mixture is in the range from about 0.025˜0.5 mol %, and the concentration of said hydrocarbon in said raw material mixture is in the range represented by (273/(T-1000)) 4 ˜10((73/T-1000)) mol %, wherein T represents the absolute temperature (K) of the reaction region.    
     
     
         11 : The method for manufacturing a carbonaceous nanotube according to  claim 10 , wherein said transition metal compound is ferrocene.  
     
     
         12 : The method for manufacturing a carbonaceous nanotube according to  claim 10 , wherein said sulfur compound is thiophene.