title: Graphene-wrapped hybrid spheres of electrical conductivity.
abstract: We present a simple approach for the fabrication of monodisperse electroconductive hybrid spheres using graphene sheet-wrapping via ionic interaction-based self-assembly. The graphene sheets partially charged with anion, which were prepared by controlled chemical reduction of graphite oxide, were mixed with monodisperse polymer nanospheres containing cationic surface charge to form ionic self-assembled hybrid spheres of core-shell structure. The resulting graphene-wrapped hybrid spheres were found to have graphene layer thickness of ca. 10 nm and to exhibit electrical conductivity of 1.33-4.21 S/m as well as monodisperse distributions in shape and diameter.
authors: Polymer Hybrid Center, Korea Institute of Science & Technology, Seoul 136-791, Korea.
authors: Sang Ah
authors: SA
authors: Ju
authors: Kyunghee
authors: K
authors: Kim
authors: Jung-Hyun
authors: JH
authors: Kim
authors: Sang-Soo
authors: SS
authors: Lee
mesh_terms: D000838:Anions / Q000737:chemistry; D004553:Electric Conductivity; D006108:Graphite / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry
chemical_list: D000838:Anions; D010087:Oxides; D006108:Graphite