Method for producing a single-wall carbon nanotube

Abstract

A method for producing a single-wall carbon nanotube, comprising contacting an organic dehydrated alcohol with a catalyst in a closed space in vacuum at a temperature of 600 to 900° C.

1 . A method for producing a single-wall carbon nanotube, comprising contacting an organic dehydrated alcohol with a catalyst in a closed space in vacuum at a temperature of 600 to 900° C. 
     
     
         2 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the pressure of the closed space at the time of contacting the organic dehydrated alcohol is at most 10×10 −2  Pa. 
     
     
         3 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the pressure at which the organic dehydrated alcohol is contacted with the catalyst is from 1 Pa to 100 kPa. 
     
     
         4 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the organic dehydrated alcohol mainly comprises ethanol. 
     
     
         5 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the catalyst is at least one kind selected from Fe, Co, Ni, Mo, Pt, Pd, Rh, Ir, Y, La, Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er and Lu and oxides thereof. 
     
     
         6 . The method for producing a single-wall carbon nanotube according to  claim 1 , comprising washing the closed space before contacting the organic dehydrated alcohol with the catalyst. 
     
     
         7 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the catalyst is a particle and the probability that a single-wall carbon nanotube grows from one particle is at least 50%. 
     
     
         8 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the single-wall carbon nanotube has a length of at least 50 nm. 
     
     
         9 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the single-wall carbon nanotube is formed on a substrate. 
     
     
         10 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the single-wall carbon nanotube can be vertically grown. 
     
     
         11 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the organic dehydrated alcohol is contracted with a catalyst at a temperature of 700 to 800° C. 
     
     
         12 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the pressure of the closed space at the time of contacting the organic dehydrated alcohol is at most 10×10 −4  Pa. 
     
     
         13 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the pressure at which the organic dehydrated alcohol is contacted with the catalyst is from 100 Pa to 40 kPa. 
     
     
         14 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the catalyst is a particle and the probability that a single-wall carbon nanotube grows from one particle is at least 60%. 
     
     
         15 . The method for producing a single-wall carbon nanotube according to  claim 1 , wherein the single-wall carbon nanotube has a length of at least 1000 nm.