title: Graphene oxides dispersing and hosting graphene sheets for unique nanocomposite materials.
abstract: Graphene oxides (GOs), beyond their widely reported use as precursors for single-layer graphene sheets, are in fact excellent materials themselves (polymers in two-dimension, polyelectrolyte-like, aqueous solubility and biocompatibility, etc.). In this reported work we used aqueous GOs to effectively disperse few-layer graphene sheets (GNs) in suspension for facile wet-processing into nanocomposites of GNs embedded in GOs (as the polymeric matrix). The resulting lightweight and plastic-like nanocomposite materials remained mechanically flexible even at high loadings of GNs, and they were found to be highly efficient in thermal transport, with the experimentally determined thermal diffusivity competitive to those typically observed only in well-known thermally conductive metals such as aluminum and copper. As demonstrated, GOs apparently represent a unique class of two-dimensional polymeric materials for potentially "all-carbon" nanocomposites, among others, which may find technological applications independent of those widely proclaimed for graphene sheets.
authors.affiliation: Department of Chemistry and Laboratory for Emerging Materials and Technology, Clemson University, Clemson, South Carolina 29634-0973, USA.
authors.forename: Leilei
authors.initials: L
authors.lastname: Tian
authors.forename: Parambath
authors.initials: P
authors.lastname: Anilkumar
authors.forename: Li
authors.initials: L
authors.lastname: Cao
authors.forename: Chang Yi
authors.initials: CY
authors.lastname: Kong
authors.forename: Mohammed J
authors.initials: MJ
authors.lastname: Meziani
authors.forename: Haijun
authors.initials: H
authors.lastname: Qian
authors.forename: L Monica
authors.initials: LM
authors.lastname: Veca
authors.forename: Tim J
authors.initials: TJ
authors.lastname: Thorne
authors.forename: Kenneth N
authors.initials: KN
authors.lastname: Tackett
authors.forename: Travis
authors.initials: T
authors.lastname: Edwards
authors.forename: Ya-Ping
authors.initials: YP
authors.lastname: Sun