| 초록 |
Various materials have been investigated as the electrode for supercapacitors, including carboneous materials, conducting polymers, and transition-metal oxides. In particular, the graphene oxide(GO), one of the most widely used derivatives of graphene, has a large surface area with a controllable surface necessary for this application based on a flat carbon form. Manganese oxide(MnO2)is generally considered to be the most promising transition metal oxide for supercapacitors because of its high-energy density, low cost, environmental friendliness, and natural abundance. In this study, we demonstrate integration of MnO2 into the multilayered thin films of graphene oxide nanosheets assembled by layer-by-layer (LbL) methods as a means to improve the electrochemical properties for supercapacitor application. We expect that the assembled GO/MnO2 nanocomposite electrodes exhibits a long period stability with an excellent electrochemical performance compared to GO/GO multilayered films. |
