Exfoliation of graphite oxide in propylene carbonate and thermal reduction of the resulting graphene oxide platelets.
basic_science · Level V
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- Record sourced from PubMed, PMID 20112929.
- Also identified by DOI 10.1021/nn901689k.
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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.