Combustion synthesis of fullerenes

✍ Scribed by J.Thomas Mckinnon; William L. Bell; Robert M. Barkley

• Book ID: 103037641
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 724 KB
• Volume: 88
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(92)90010-m

✦ Synopsis

We report the isolation of C6o and C7o from combustion soot that is produced in high-temperature, low-pressure premixed flat flames. A critical parameter for high fullerene yields in combustion appears to be a very high flame temperature. Equilibrium calculations indicate that low pressures are important, but the experimental evidence is not clear at this time. Combustion synthesis yields fullerenes with a C 70/C 60 ratio of about 40 %, as compared with the 12% reported for electric-arc-generated fullerenes. The overall yields from carbon are very low (ca. 0.03%) but the soot studied had been produced in flames that were in no way optimized for fullerene production.