EXFOLIATION OF GRAPHITE OXIDE IN PROPYLENE CARBONATE AND THERMAL REDUCTION OF RESULTING GRAPHENE OXIDE PLATELETS

摘要

Disclosed are compositions and methods wherein graphite oxide was exfoliated and dispersed in propylene carbonate (PC) by bath sonication. Heating the graphene oxide suspensions at 150°C significantly reduced the graphene oxide platelets; paper samples comprised of such reduced graphene oxide platelets had an electrical conductivity of 5230 S/m. By adding TEA BF₄ to the reduced graphene oxide/PC slurry and making a 2-cell ultracapacitor, specific capacitance values of about 120 F/g were obtained.