{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Li Z"],"funding":["National Natural Science Foundation of China"],"pagination":["33208-33218"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9042292"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["11(53)"],"pubmed_abstract":["It is a considerable challenge to produce a supercapacitor with inexpensive raw materials and employ a simple process to obtain carbon materials with a high specific surface area, rich pore structure, and appropriate doping of heterogeneous elements. In the current study, yam waste-derived porous carbon was synthesized for the first time by a two-step carbonization and KOH chemical activation process. An ultra-high specific surface area of 2382 m2 g-1 with a pore volume of 1.11 cm3 g-1 and simultaneous co-doping of O-N was achieved for the optimized sample. Because of these distinct features, the optimized material exhibits a high gravimetric capacitance of 423.23 F g-1 at 0.5 A g-1 with an impressive rate capability at 10 A g-1, and prominent cycling durability with a capacity retention of 96.4% at a high current density of 10 A g-1 after 10 000 cycles in 6 M KOH in a three-electrode system. Moreover, in 6 M KOH electrolyte, the assembled symmetrical supercapacitor provides a large C of 387.3 F g-1 at 0.5 A g-1. It also presents high specific energy of 34.6 W h kg-1 when the specific power is 200.1 W kg-1 and a praiseworthy specific energy of 8.3 W h kg-1 when the specific power is 4000.0 W kg-1 in 1 M Na2SO4 electrolyte. Thus, this study provides reference and guidance for developing high-performance electrode materials for supercapacitors."],"journal":["RSC advances"],"pubmed_title":["Nitrogen and oxygen Co-doped porous carbon derived from yam waste for high-performance supercapacitors."],"pmcid":["PMC9042292"],"funding_grant_id":["52002111"],"pubmed_authors":["Sun L","Li Z","Zhang D","Wang Q","Wang B","Liu Q","Wang X","Li N"],"additional_accession":[]},"is_claimable":false,"name":"Nitrogen and oxygen Co-doped porous carbon derived from yam waste for high-performance supercapacitors.","description":"It is a considerable challenge to produce a supercapacitor with inexpensive raw materials and employ a simple process to obtain carbon materials with a high specific surface area, rich pore structure, and appropriate doping of heterogeneous elements. In the current study, yam waste-derived porous carbon was synthesized for the first time by a two-step carbonization and KOH chemical activation process. An ultra-high specific surface area of 2382 m2 g-1 with a pore volume of 1.11 cm3 g-1 and simultaneous co-doping of O-N was achieved for the optimized sample. Because of these distinct features, the optimized material exhibits a high gravimetric capacitance of 423.23 F g-1 at 0.5 A g-1 with an impressive rate capability at 10 A g-1, and prominent cycling durability with a capacity retention of 96.4% at a high current density of 10 A g-1 after 10 000 cycles in 6 M KOH in a three-electrode system. Moreover, in 6 M KOH electrolyte, the assembled symmetrical supercapacitor provides a large C of 387.3 F g-1 at 0.5 A g-1. It also presents high specific energy of 34.6 W h kg-1 when the specific power is 200.1 W kg-1 and a praiseworthy specific energy of 8.3 W h kg-1 when the specific power is 4000.0 W kg-1 in 1 M Na2SO4 electrolyte. Thus, this study provides reference and guidance for developing high-performance electrode materials for supercapacitors.","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Oct","modification":"2025-04-26T15:17:56.546Z","creation":"2025-04-06T14:51:12.517Z"},"accession":"S-EPMC9042292","cross_references":{"pubmed":["35497555"],"doi":["10.1039/d1ra06154b"]}}