Author/Authors :
Dai، نويسنده , , Hongjie and Rinzler، نويسنده , , Andrew G. and Nikolaev، نويسنده , , Pasha and Thess، نويسنده , , Andreas and Colbert، نويسنده , , Daniel T. and Smalley، نويسنده , , Richard E.، نويسنده ,
Abstract :
Isolated single-wall carbon nanotubes (SWNT) were grown by disproportionation of carbon monoxide at 1200°C, catalyzed by molybdenum particles a few nanometers in size. The tube diameters, ranging from 1 to 5 nm, closely correlated with the size of the catalytic particle found attached to the tube end. This result represents the first experimental evidence of SWNT produced by pre-formed catalytic particles. A mechanism for nucleation that is quite distinct from our recently proposed mechanism of SWNT produced by laser vaporization is advanced for formation of SWNT in the present case.
