Three-dimensional hierarchical and interconnected honeycomb-like porous carbon derived from pomelo peel for high performance supercapacitors

3D hierarchical and interconnected honeycomb-like porous carbonaceous materials (HPGC) from waste biomass (pomelo peels) were successfully prepared through the combination of hydrothermal carbonization and followed KOH activation procedure. The as-obtained carbon material exhibits satisfactory capacitive behavior. The obtained results demonstrate the possibility for taking full advantage of sustainable carbon materials by choosing biomass waste provided by nature as raw materials.365