Hierarchical porous graphene foam prepared by templating and embossing method..
Vertically PANI nanowires aligned on interconnected porous graphene sheets.
The fRGO-F/PANI device exhibited 939 F g−1 at 1 A g−1.
ED and PD of fRGO-F/PANI device was 20.9 Wh kg−1 and 103.2 kW kg−1.