biostudies-literatureUnknown10Zhang ZA template-free and one-step carbonization process was developed for fabricating graphitic porous carbon spheres (GPCSs) on hemicelluloses as the electrode material for supercapacitors. This method is green, low-energy, and less time consuming compared to the conventional two-step process (pore-forming and graphitizing). It uses K₂FeO₄, a mild activating agent that fulfills synchronous activation and graphitization. The GPCSs is regular spherical shape, have high nanoporosity, a large specific surface area (1,250 m2 g^-1), and have a high graphitization degree. A unique structural advantage includes a rich interconnected conductive network for electron transfer that shortens the ion transport distance of the electrolyte. Remarkably, the GPCSs electrode displFrontiers in bioengineering and biotechnology1030944https://www.ebi.ac.uk/biostudies/studies/S-EPMC9556887biostudies-literatureHigh performance bio-supercapacitor electrodes composed of graphitized hemicellulose porous carbon spheres.PMC9556887Tian ZYang GJi XZhang ZChen JWang BLi FLucia LZhang LfalseHigh performance bio-supercapacitor electrodes composed of graphitized hemicellulose porous carbon spheres.A template-free and one-step carbonization process was developed for fabricating graphitic porous carbon spheres (GPCSs) on hemicelluloses as the electrode material for supercapacitors. This method is green, low-energy, and less time consuming compared to the conventional two-step process (pore-forming and graphitizing). It uses K₂FeO₄, a mild activating agent that fulfills synchronous activation and graphitization. The GPCSs is regular spherical shape, have high nanoporosity, a large specific surface area (1,250 m2 g^-1), and have a high graphitization degree. A unique structural advantage includes a rich interconnected conductive network for electron transfer that shortens the ion transport distance of the electrolyte. Remarkably, the GPCSs electrode displ2022-01-01T00:00:00Z20222025-04-18T22:37:16.521Z2025-04-07T10:23:10.199ZS-EPMC95568873624634710.3389/fbioe.2022.1030944