We demonstrate an aqueous supercapacitor based on self-standing, porous, hydrophilic, and 26-μm-thick activated carbon nanofoam. The device delivers an areal (volumetric) capacitance of 95.4 mF/cm2 (18.3 F/cm3) at 2 mA with retention of 103% at 20 mA and achieves a voltage of 1 V, superior compared to pristine and annealed examples.
KOH-activated micrometer-thick amorphous carbon nanofoam as a binder-free supercapacitor electrode with high-rate performance
Ghosh, Subrata;Zhang, Yifan;Suriano, Raffaella;Agozzino, Marco;Casari, Carlo S.
2025-01-01
Abstract
We demonstrate an aqueous supercapacitor based on self-standing, porous, hydrophilic, and 26-μm-thick activated carbon nanofoam. The device delivers an areal (volumetric) capacitance of 95.4 mF/cm2 (18.3 F/cm3) at 2 mA with retention of 103% at 20 mA and achieves a voltage of 1 V, superior compared to pristine and annealed examples.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
d5cc01916h.pdf
accesso aperto
Descrizione: paper
:
Publisher’s version
Dimensione
901.5 kB
Formato
Adobe PDF
|
901.5 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
