Chestnut-Derived Activated Carbon as a Prospective Material for Energy Storage
| Autor: | Anita Cymann-Sachajdak, Marek Klein, Justyna Łuczak, Monika Wilamowska-Zawłocka, Paweł Kazimierski, Katarzyna Januszewicz |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope activation process 02 engineering and technology 010402 general chemistry Electrochemistry lcsh:Technology 01 natural sciences Article Specific surface area Biochar medicine General Materials Science lcsh:Microscopy Porosity lcsh:QC120-168.85 biomass-derived activated carbons lcsh:QH201-278.5 lcsh:T energy storage 021001 nanoscience & nanotechnology pyrolysis 0104 chemical sciences Chemical engineering lcsh:TA1-2040 Electrode electrochemical capacitors lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 Pyrolysis Activated carbon medicine.drug |
| Zdroj: | Materials Materials, Vol 13, Iss 4658, p 4658 (2020) Volume 13 Issue 20 |
| ISSN: | 1996-1944 |
| Popis: | In this work, we present the preparation and characterization of biomass-derived activated carbon (AC) in view of its application as electrode material for electrochemical capacitors. Porous carbons are prepared by pyrolysis of chestnut seeds and subsequent activation of the obtained biochar. We investigate here two activation methods, namely, physical by CO2 and chemical using KOH. Morphology, structure and specific surface area (SSA) of synthesized activated carbons are investigated by Brunauer-Emmett-Teller (BET) technique and scanning electron microscopy (SEM). Electrochemical studies show a clear dependence between the activation method (influencing porosity and SSA of AC) and electric capacitance values as well as rate capability of investigated electrodes. It is shown that well-developed porosity and high surface area, achieved by the chemical activation process, result in outstanding electrochemical performance of the chestnut-derived porous carbons. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |