| 초록 |
Carbon-based materials are widely utilized as electrode materials of energy storage devices owing to their high electrical conductivity and large specific surface area. Recently, metal-organic frameworks (MOFs), a class of porous compounds consisting of metal ions or clusters coordinated to organic ligands, have attracted great attention because of the controllable structures and tunable properties. In this study, for attaining enhanced electrode materials, hybrid carbon nanofibers (CNFs) based polyimide (PI) and MOF were fabricated via electrospinning and carbonization. The morphology and microstructures of hybrid CNFs were characterized by using SEM, TEM, FT-IR, Raman, and BET measurements. The electrochemical properties of the hybrid CNFs were evaluated by using cyclic voltammetry and galvanostatic charge-discharge tests. The specific capacitance, cyclic stability, energy and power densities of the hybrid CNFs were discussed in terms of the MOF content, surface area and porosity. |
