| Title |
Sustainable Green Route for Activated Carbon Synthesis from Biomass Waste for High-Performance Supercapacitors |
| ID_Doc |
23425 |
| Authors |
Jafari, M; Botte, GG |
| Title |
Sustainable Green Route for Activated Carbon Synthesis from Biomass Waste for High-Performance Supercapacitors |
| Year |
2024 |
| Published |
Acs Omega, 9, 11 |
| DOI |
10.1021/acsomega.3c09438 |
| Abstract |
Supercapacitors are high-power energy storage devices due to their charge storage capability and long cyclic stability. These devices rely on highly porous materials for electrodes providing a substantial surface area per mass, such as highly porous carbon. Developing high-performance porous carbon from biomass wastes such as waste-activated sludge and spent coffee is a sustainable way to reduce adverse environmental effects, contributing toward a carbon circular economy. In this study, hierarchically porous carbon with a high surface area of 1198 +/- 60 m(2) g(-1) was synthesized through a green route. Sodium acetate was utilized as an environmentally friendly electrolyte. The long-term stability test at a high current density was conducted, providing valuable insights into the viability of sodium acetate as a robust electrolyte in supercapacitor application. The supercapacitor demonstrated an excellent cycle stability of 98.4% after 20,000 cycles at a current density of 10 A g(-1) in sodium acetate. Further assessment revealed dominant fast surface kinetics. Moreover, a maximum energy density of 15.9 Wh kg(-1) at 0.2 A g(-1) was achieved. By utilizing highly porous carbon in conjunction with a water-based binder, a substantial improvement of 76% in capacity with respect to a nonaqueous-based binder was demonstrated. |
| Author Keywords |
|
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001181868100001 |
| WoS Category |
Chemistry, Multidisciplinary |
| Research Area |
Chemistry |
| PDF |
https://pubs.acs.org/doi/pdf/10.1021/acsomega.3c09438
|