Author/Authors :
Alvarez، نويسنده , , L. and Guillard، نويسنده , , T. and Olalde، نويسنده , , G. and Rivoire، نويسنده , , B. and Robert، نويسنده , , J.F. and Bernier، نويسنده , , P. H. Flamant، نويسنده , , G. and Laplaze، نويسنده , , D.، نويسنده ,
Abstract :
Direct vaporization of graphite, under inert gas atmosphere, using a 2 kW solar furnace of the Odeillo institute, gives fullerenes with a yield which can reach 20 %. In the same way, vaporizing graphite/bimetal targets we can produce single-wall carbon nanotubes. The limiting factor is the target temperature which is around 3000 K. With a more powerful furnace (1000 kW) for which the vaporization temperature could reach 3400 K for larger targets we can increase significantly the fullerenes yield or the purity of carbon nanotubes. We report the first results obtained with this new set-up.
