Electrochemical Properties of Nanoporous Carbon Material in Aqueous Electrolytes
| Autor: | Nataliia Ya. Ivanichok, V. M. Vashchynsky, B. I. Rachiy, I. M. Budzulyak, Marian O. Nykoliuk |
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| Jazyk: | angličtina |
| Předmět: |
Materials science
Nanochemistry Nanotechnology 88.80.Fh 02 engineering and technology Electrolyte Raw material Electrochemistry 01 natural sciences Capacitance chemistry.chemical_compound Aqueous electrolyte Materials Science(all) 0103 physical sciences General Materials Science Nanoporous carbon material 81.05.Uw 010302 applied physics Potassium hydroxide Nano Express Capacity Carbonization 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry Chemical engineering 82.45.Gj 0210 nano-technology Current density Voltage drop 82.47.Uv |
| Zdroj: | Nanoscale Research Letters |
| ISSN: | 1931-7573 |
| DOI: | 10.1186/s11671-016-1241-z |
| Popis: | The paper is devoted to the study of the behavior of capacitor type electrochemical system in the К(+)-containing aqueous electrolytes. Nanoporous carbon material (NCM) was used as the electrode material, obtained by carbonization of plant raw materials with the following chemical activation. Optimization of pore size distribution was carried out by chemical-thermal method using potassium hydroxide as activator. It is shown that obtained materials have high values of capacitance which is realized by charge storage on the electrical double layer and by pseudocapacitive ion storage on the surface of the material. It is established that based on NCM, electrochemical capacitors are stable in all range of current density and material capacity essentially depends on appropriate choice of electrolyte. |
| Databáze: | OpenAIRE |
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