| 초록 |
NiCo2O4/C composites with filter paper carbon as the substrate have been synthesized through a simple hydrothermal approach for use in supercapacitors.The 3D framework of the FC substrate not only prevents the aggregation of NiCo2O4 nanoparticles, but also improves its electrical conductivity, thus leading to excellent electrochemical performance. Moreover, an asymmetric supercapacitor was assembled by using the NiCo2O4/C composites and activated carbon as the positive and negative electrode, respectively, and provided a maximum energy density of 20.87 Wh kg-1 at a power density of 374.6 W kg-1 and a maximum power density of 7.48 kW kg-1 at an energy density of 11.43 Wh kg-1 within a potential window of 0-1.5 V, demonstrating the potential of the composites for use in high performance energy storage systems. |
