Hierarchically porous carbons derived from polyaniline by nanotube seeding for high-performance ionic liquid-based supercapacitors

We demonstrate the outstanding combination of ultrahigh energy density (199.11 Wh kg(-1)) and capacity retention (90.5%, 10 000 cycles) of ionic liquid electrolyte supercapacitors based on novel hierarchically porous carbons derived from polyaniline nanorods by carbon nanotube seeding.