Oxygen-Plasma Surface Treatment of an Electrode Sheet Using Carbon from Japanese Distilled Liquor Waste for Double-layer Capacitors
| Autor: | Takuya Eguchi, Masaki Hirano, Daisuke Tashima, Seiji Kumagai, Satoshi Kitazaki |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Double layer capacitor Analytical chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Capacitance 0104 chemical sciences law.invention Capacitor chemistry law Electrode medicine Surface modification Cyclic voltammetry 0210 nano-technology Carbon Activated carbon medicine.drug |
| Zdroj: | Electrochem. 1:322-328 |
| ISSN: | 2673-3293 |
| DOI: | 10.3390/electrochem1030020 |
| Popis: | Oxygen-plasma treatment was performed on an activated carbon sheet obtained from shochu (Japanese distilled liquor) waste using a high-frequency plasma generator. The capacitances of the activated carbon sheet electrode subjected to surface treatment were measured using cyclic voltammetry. The best results were obtained with a processing time of 60 min, an output power of 40 W, an interelectrode distance of 13 cm and an oxygen pressure of 40 Pa. The maximum capacitance was 247 F g−1. Investigation of the surface functional groups of the activated carbon sheet revealed that the oxygen-containing functional groups modified on the surface of the activated carbon sheet electrode contributed to the improvement in the capacitance. High-performance electric double-layer capacitors can be realized using the developed electrodes. |
| Databáze: | OpenAIRE |
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