  With the increase in demand of electrical energy storage devices such as
batteries and supercapacitors, considerable effort is being put to increase the
efficiency and applications of current technology while keeping it sustainable.
Keeping this in mind we have persued the preparation and charatization of waste
biomass derived carbon powders as supercapacitor/battery electrodes.
Additionally, we have evaluated the performance of such carbons in the presence
of an external magnetic field as we expect the graphene like structures to
possess intrinsic magnetic nature. Here, we report the valorization of
bougainvillea flower petals and detritus into graphenic carbon and explore a
novel electrical double layer supercapacitor device that uses Zn+2 ions for
internal charge transport and is able to show increased performance upon
application of an external magnetic field.
