“Eau de graphene” from a KC8 graphite intercalation compound prepared by a simple mixing of graphite and molten potassium Auteur(s): Bepete George, Hof Ferdinand, Huang Kai, Kampioti Katerina, Anglaret E., Drummond Carlos, Pénicaud Alain (Article) Publié: Physica Status Solidi - Rapid Research Letters, vol. 10 p.pp. 895-899 (2016) Texte intégral en Openaccess : Ref HAL: hal-01420874_v1 DOI: 10.1002/pssr.201600167 WoS: 000393189300007 Exporter : BibTex | endNote 7 Citations Résumé: We synthesized KC8 by simply mixing molten potassium and graphite at 180 °C under inert atmosphere. The KC8 showstypical shiny bronze color, Raman characteristics and XRD pattern of an efficiently intercalated stage 1 GIC, and is ofsufficient quality to produce fully exfoliated graphenide solutions in tetrahydrofuran (THF) and subsequently single layer graphene in water as “eau de graphene” (EdG). The evolution of absorption and Raman spectroscopic signatures of the EdGas a function of processing conditions give key indications on the number of layers of the graphene flakes dispersed in EdG. |