Enteromorpha based porous carbons activated by zinc chloride for supercapacitors with high capacity retention

Porous carbons were prepared from enteromorpha with ZnCl₂ as active reagent. The prepared porous carbon with a specific surface area of 1651 m² g⁻¹ exhibited a specific capacitance of 206 F g⁻¹ and capacity retention of 93% even after 5000 cycles.