| Autor: |
Erman Taer, Apriwandi Apriwandi, Rika Taslim, Agustino Agutino, Deris Afdal Yusra |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 13332-13340 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2020.09.049 |
| Popis: |
The porous activated carbon nanosheet derived from Syzygium oleana leaves biomass was prepared by one-stage integrated pyrolysis through both carbonization and physical activation for supercapacitor electrode as energy storage application. Carbonization was performed in three different temperatures, including 500 °C, 600 °C, and 700 °C. The 1 M potassium hydroxide was selected to produce activated carbon progressively. Importantly, the surface morphology and the samples were characterized by Scanning electron microscopy at a voltage of 15 kV and nitrogen adsorption/desorption at a temperature of 77 K. The results showed a like-flower nanosheets structure decorated by nanofiber increases the surface area of activated carbon from 216 m2 g−1 to 1218 m2 g−1 with tuneable well-confirmed mesopores sizes. Degree of crystallinity and chemical composition also were characterized by using X-ray diffraction and Energy dispersive spectroscopy. Furthermore, electrochemical measurements had the best performances with a high specific capacitance of 188 F g−1 at two-electrode system with a scan rate of 1 mV s−1. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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