Abstract
The high intensity of solar radiation, obtained with the Odeillo (France) solar furnace facilities, is used to vaporize graphite in inert gas atmosphere. The soot obtained contains C 60, C 70 and other heavier fullerenes. We discuss the possibility of increasing the evaporation of graphite and the yield of soot with this technique. From our last experiments, we obtain an estimate of the soluble fullerene yield which varies with the pressure and can reach 18%, and we have shown that 13C-enriched fullerenes can be easily produced by this process.
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