Deng Shunliu, 邓顺柳, Xie Suyuan
2011
Citations
0
Influential Citations
6
Citations
Journal
ChemInform
Abstract
Publisher Summary Fullerenes are a family of all-carbon clusters that are typically composed of a number of hexagons and exactly 12 pentagons. Soccer-ball-shaped “buckminsterfullerene” C60 having Ih symmetry is the most famous member. In 1990, Kratschmer first reported the technique capable of producing milligram quantities of C60 by resistive heating of graphite. Infrared spectral studies of the resulting black carbon soot scraped from the chamber showed four prominent sharp absorptions, close to those predicted for buckminsterfullerene. C60 and C70 are always predominantly produced in the graphite resistive heating or arc-discharge approaches. Depending on the doping of graphite reactant, however, the relative contents of fullerenes in the products can be varied to some extent. With a 1% B-doped graphite rod, the absolute yield of C60 was reduced from 8.85% to 2.75%, while the yield of higher fullerenes such as C78 and C84 were increased by a factor of 2. Ahmad reported the synthesis of higher fullerene C84 in direct current (DC) arc discharge using Cu as a catalyst.