Fig. 6From: Graphene and Polymer Composites for Supercapacitor Applications: a Review a A scheme illustrating the preparation process of graphene/PANI hybrid materials. b CV curves of graphene, PANI, GEOP-1, GEP-2, and GEP-3, at 1 mV s−1 in 1 M H2SO4 in the potential range from −0.2 to 0.6 V. c Specific capacitance changes with different samples. Reprinted with permission from [44]. Copyright 2010 Royal Society of ChemistryBack to article page