| 초록 |
Herein, we report a porous graphene network (PGN) for energy storage devices. We overcame the level of limitations with reduced graphene oxide (rGO) due to still unresolved several issues including pi-pi stacking between the graphene sheets, low wettability, and relatively high electrical resistance. Our 3D networked graphene structure intercalated by graphitic carbon nitride successfully solves the restacking problem of rGO and inclusion of partially oxidized CNTs in PGN provides extended electron pathways without reducing the wettability of CNTs-containing compounds, which facilitate charge transfer and accomplish good rate capability. Also, the large surface area of the 3D PGN provides abundant active sites for ion adsorption, which directly increases the capacitance and high energy density of EDLC systems. |
