| Autor: |
Yuliya Sinelnikova, Alexander Nizovskii, Nikolai Uvarov |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Chimica Techno Acta, Vol 10, Iss 3 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2411-1414 |
| DOI: |
10.15826/chimtech.2023.10.3.13 |
| Popis: |
The use of nitrogen-doped carbon materials as electrodes in supercapacitors is a promising area of research. In this study highly-porous nitrogen-containing carbon materials were obtained by pyrolysis of melamine formaldehyde resin in the presence of nanocrystalline MgO as a hard template that was washed off after the pyrolysis. Magnesium citrate was used as a precursor for the synthesis of the template agent in situ during the pyrolysis of the resin. The obtained materials were characterized by X-ray diffraction, BET nitrogen adsorption method and Raman spectroscopy. The presence of nitrogen in the amount of 4 atomic percent was proved by XPS spectroscopy. The specific surface area was found to increase monotonically from 10 to 1300 m2/g with an increase in the content of magnesium citrate in the initial mixture. The samples showed high capacitance of 120 F/g in 1 M H2SO4 electrolyte and can be used in supercapacitors. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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