| 초록 |
The supercapacitor (SC) is regarded as a potential future portable energy device due to its high power density, fast charge and discharge rate, long cycle fife time, compared with lithium-ion batteries and conventional capacitors. Recently, graphenes has been recognized as potential electrode materials of energy storage devices because of their remarkable electrical properties, chemical and mechanical stability, and large surface area.Herein, we report the pyridinium-based ionic liquids functionalize reduced graphene oxides (f-RGOs) for providing RGOs with special properties while simultaneously obtaining highly stable colloidal suspensions. Owing to the functionality of ILs, RGO/IL hybrids showed higher dispersion capability in organic solvents compared to that of pristine RGO. |
