| 초록 |
Graphene-oxide and multi-walled carbon nanotube have been used to make a novel flexible and freestanding electrode for energy storage devices such as supercapacitors. For the supercapacitor electrode, high capacitance can be realized through synergy with not only materials with high electrical conductivity but also efficient structures. The composition of micro, meso, and macropores is important in the actual 3D bulk structure. Using polystyrene nanospheres of uniform size and size distribution, macropores have been developed in the electrode to increase the practically beneficial surface area. Through morphological analysis and various electrochemical analysis, it was confirmed that the porous carbon electrode in this study exhibited well-designed 3D hierarchical pore structure, and the supercapacitor based on 3D hierarchical porous carbon electrode deployed much higher performance than commercial electrodes based on graphite or active carbon used so far. |
