Fatsia Japonica-Derived Hierarchical Porous Carbon for Supercapacitors With High Energy Density and Long Cycle Life
| Autor: | Huiling Li, Lihua Cao, Feng Wang, Gaigai Duan, Wenhui Xu, Changtong Mei, Guoying Zhang, Kunming Liu, Meng Yang, Shaohua Jiang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Annealing (metallurgy) 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences Capacitance biomass materials lcsh:Chemistry hierarchical porous carbon Original Research Supercapacitor supercapacitors biology Fatsia japonica General Chemistry 021001 nanoscience & nanotechnology biology.organism_classification 0104 chemical sciences Chemistry Chemical engineering lcsh:QD1-999 Electrode Energy density long cycle life 0210 nano-technology Current density energy density |
| Zdroj: | Frontiers in Chemistry, Vol 8 (2020) Frontiers in Chemistry |
| ISSN: | 2296-2646 |
| DOI: | 10.3389/fchem.2020.00089/full |
| Popis: | Fatsia Japonica seed, which is mainly composed of glucose, has potential as a porous carbon matrix precursor for supercapacitors that can achieve high-value utilization. Cost-effective hierarchical porous carbon materials (HPC) were prepared from Fatsia Japonica by annealing at high temperature. The pore size and distribution of the HPC can be precisely controlled and adjusted by altering the activation temperature. The HPC obtained at 600°C showed favorable features for electrochemical energy storage, with a surface area of 870.3 m2/g. The HPC for supercapacitors (a three-electrode system) exhibited good specific capacitance of 140 F/g at a current density of 1 A/g and a long cycling life stability (87.5% remained after 10,000 cycles). In addition, the HPC electrode showed an excellent energy density of 23 Wh/Kg. Such hierarchical porous biomass-derived carbon would be a good candidate for application in the electrodes of supercapacitors due to its simple preparation process and the outstanding electrochemical performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|