• 文献标题:   Graphene-Wrapped Hybrid Spheres of Electrical Conductivity
  • 文献类型:   Article
  • 作  者:   JU SA, KIM K, KIM JH, LEET SS
  • 作者关键词:   charged graphene, electroconductivity, hybrid sphere, ionic interaction
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244
  • 通讯作者地址:   Korea Inst Sci Technol
  • 被引频次:   55
  • DOI:   10.1021/am200056t
  • 出版年:   2011

▎ 摘  要

We present a simple approach for the fabrication of monoisperse 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.