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 similar to 274 F g(-1) as evaluated by cyclic voltammetry under a potential scan rate of 2 mV s(-1). The specific capacitance decreases from similar to 203 F g(-1) at cycle 1 to similar to 168 F g(-1) at cycle 2000 in a cycling stability test evaluated under a potential scan rate of 200 mV s (-1). (C) 2016 Elsevier B.V. All rights reserved.