| 초록 |
Reduced step and environmental-friendly synthesis of graphene is important for scalable synthesis and industrial application of graphene. The control of functional groups on the graphene surface is also a major point in graphene based nanocomposites. In this work, we exfoliated and functionalized graphite electrode using electrochemical process. For checking applicability for polymer nanocomposite of as made graphene, Polyimide nanocomposite films was made by in-situ polymerization. The structure and exfoliated states of graphene are studied by powder X-ray diffraction (XRD), Transmission electron microscopy (TEM), and Raman Spectroscopy. Surface functional groups are measured using X-ray photoelectron spectroscopy (XPS) and Energy dispersive X-ray spectroscopy (EDS) elemental mapping. Functional groups of graphene surface depend on electrolytes and electrode that are connected with graphite. |
