Eco-Friendly Synthesis of 3D Disordered Carbon Materials for High-Performance Dual Carbon Na-Ion Capacitors.

ABSTRACT: An eco-friendly and sustainable salt-templating approach was proposed for the production of anode materials with a 3D sponge-like structure for sodium-ion capacitors using gluconic acid as carbon precursor and sodium carbonate as water-removable template. The optimized carbon material combined porous thin walls that provided short diffusional paths, a highly disordered microstructure with dilated interlayer spacing, and a large oxygen content, all of which facilitated Na ion transport and provided plenty of active sites for Na adsorption. This material provided a capacity of 314 mAh g^-1 at 0.1 A g^-1 and 130 mAh g^-1 at 10 A g^-1 . When combined with a 3D highly porous carbon cathode (S_BET ≈2300 m²  g^-1 ) synthesized

SUBMITTER: Fombona-Pascual A 

PROVIDER: S-EPMC9804518 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature