Fig xA a Comparative CVs

ASC demonstrated excellent cycling stability, ~94% capacitive retention after 2000 cycles with stable columbic efficiency (~97%) and ultra short relaxation time. Our work opens up the possibility of cobalt oxides/Graphene nanoribbons composite for a promising capacitive material for future high energy devices.
AcknowledgementsAuthors thankfully acknowledge the financial support received from CSIR through project No 01(2403)/10/EMR-II) and DST, New Delhi via project No SR/S1/PC-31/2010.