▎ 摘 要
A binder free approach was use to prepare thermally reduced graphene oxide (TRGO) at 200 degrees C directly on Ni-Foam (NF) (current collector) via atmospheric pressure-chemical vapour deposition (AP-CVD) and used as a positive electrode for supercapacitor application. The TRGO/NF electrode preparation method is simpler, quicker, cheaper and more effective compared to other method. The half-cell electrochemical performances in 6 M KOH showed a maximum specific capacity of 52.64 mA h g(-1) at 0.5 A g(-1). The device: TRGO/NF//PAC showed a specific energy and power of 18.72 Wh kg(-1) and 547.52 W kg(-1) respectively at 1 A g(-1); and 14.10 Wh kg(-1) and 2.5 kW kg(-1) respectively at 5 A g(-1). The high coulombic efficiency (99.9%) and capacitance retention (70%) indicate outstanding stability. These results represent a significant progress in the fabrication of binder and conductive enhancement free positive electrode for electrochemical energy storage devices.