초록 |
Reduced step and environmental-friendly synthesis of graphene is important for scalable synthesis and industrial application of graphene. The control of the graphene synthesis is also a major point in graphene based nanocomposites. In this study, we exfoliated graphite electrode and powder using electrochemical process in aqueous solutions. The structure and exfoliated states 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. |