Cork-Derived Carbon Sheets for High-Performance Na-Ion Capacitors.

ABSTRACT: S-doped carbon sheets have been easily prepared by deconstructing the 3D cellular structure of a fully sustainable and renewable biomass material such as cork through a mild ball-milling process. S-doping of the material (>14 wt % S) has been achieved by using sulfur as an earth-abundant, cost-effective, and environmentally benign S-dopant. Such synthesized materials provide large Na storage capacities in the range of 300-550 mAh g^-1 at 0.1 A g^-1 and can handle large current densities of 10 A g^-1, providing 55-140 mAh g^-1. Their increased packing density compared to the 3D pristine structure allows them to also provide good volumetric capacities in the range of 285-522 mAh cm^-3 at 0.1 A g^-1 and 53-133 mAh cm^-3 at

SUBMITTER: Casal MD 

PROVIDER: S-EPMC10431350 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature