Thermodynamic driving forces for fullerene formation in flames are con
sidered from three different perspectives: 1) global equilibrium, 2) f
ree energy changes for individual reactions leading to fullerene forma
tion, and 3) relative stabilities of C30Hx polycyclic aromatic hydroca
rbons (PAH). The ranges of conditions which promote formation of fulle
renes and their precursors are determined. (C) 1996 Elsevier Science L
td