title: Exfoliation of graphite oxide in propylene carbonate and thermal reduction of the resulting graphene oxide platelets.
abstract: Graphite oxide was exfoliated and dispersed in propylene carbonate (PC) by bath sonication. Heating the graphene oxide suspensions at 150 degrees C significantly reduced the graphene oxide platelets; paper samples comprising such reduced graphene oxide platelets had an electrical conductivity of 5230 S/m. By adding tetraethylammonium tetrafluoroborate (TEA BF(4)) to the reduced graphene oxide/PC slurry and making a two-cell ultracapacitor, specific capacitance values of about 120 F/g were obtained.
authors.affiliation: Department of Mechanical Engineering, The University of Texas, Austin, TX 78712, USA.
authors.forename: Yanwu
authors.initials: Y
authors.lastname: Zhu
authors.forename: Meryl D
authors.initials: MD
authors.lastname: Stoller
authors.forename: Weiwei
authors.initials: W
authors.lastname: Cai
authors.forename: Aruna
authors.initials: A
authors.lastname: Velamakanni
authors.forename: Richard D
authors.initials: RD
authors.lastname: Piner
authors.forename: David
authors.initials: D
authors.lastname: Chen
authors.forename: Rodney S
authors.initials: RS
authors.lastname: Ruoff