| 摘要 |
PURPOSE: To safely separate and refine fullerenes in a short period of time by vacuum-depositing fullerene-contg. carbon soot or the concd. extract of fullerenes. CONSTITUTION: Fullerene-contg. carbon soot obtained by a carbon electrode arc process, laser-beam evaporation, thermal decomposition, etc., or the fullerenes obtained by extracting the carbon soot with solvent, evaporating and concentrating the extract are charged into a crucible, the crucible is set in the heating part 1 of a vacuum deposition device connected to an evacuating device, and the fullerenes are vapor-deposited on a substrate 2 consisting of a heat-resistant substrate, etc., provided above the heater part 1 at 10<-1> to 10<-5> Pa and 350-700 deg.C. At this time, the fullerenes with the C60 fullerene content remarkably increased are deposited and separated by using a crucible closed with a lid having 0.1-5mm opening since C70 fullerene tends to remain in the crucible. |
