Atmospheric pressure plasma jet processed reduced graphene oxides for supercapacitor application

We successfully demonstrate reduced graphene oxides supercapacitors processed by atmospheric pressure plasma jets. The optimized processing time is merely 15?s. The best specific capacitance achieved is ?274?F?g?1as evaluated by cyclic voltammetry under a potential scan rate of 2?mV s?1. The specific capacitance decreases from ?203?F?g?1at cycle 1 to ?168?F?g?1at cycle 2000 in a cycling stability test evaluated under a potential scan rate of 200?mV?s?1. ? 2016 Elsevier B.V.