| 초록 |
As a new class of nanocarbon, graphene is expected to bring about a breakthrough in many applications including electrochemical energy storage devices due to its large specific surface area, high electrical conductivity, and its chemical properties. As for the electrochemical capacitor application, surface modification of graphene has been actively investigated to improve the specific capacitance. Research activities are also focused on the prevention of individual graphene sheets from agglomeration and/or restacking. Metal oxide/graphene composites are of considerable interest for electrochemical capacitor and battery applications. In order to bring out the excellent properties out of the synergistic combination of graphene and metal oxide, the composites is synthesized in a way that metal oxide forms only on the surface of RGO on the nanometer scale with a control over particle size, particle size distribution, coating layer thickness, thickness uniformity and loading amount. In this study, we report on the synthesis and electrochemical characterization of RGO and metal oxide/RGO nanocomposites for high rate electrochemical energy storage applications. |
