All-porous heterostructure of reduced graphene oxide–polypyrrole–nanoporous gold for a planar flexible supercapacitor showing outstanding volumetric capacitance and energy density

We propose a new prototype of flexible planar supercapacitor with highly conductive all-porous morphology of all the electroactive layers that shows outstanding volumetric stack capacitance (245.34 F cm⁻³) and energy density (98.48 mW h cm⁻³).