Mechanisms of charge accumulation in electrochemical systems formed based on of nanoporous carbon and manganese oxide
| Autor: | M. I. Kolkovskyi, N.Ya. Ivanichok, P. I. Kolkovskyi, B. K. Ostafiychuk, B. I. Rachiy, S-V.S. Sklepova |
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| Rok vydání: | 2020 |
| Předmět: |
voltammetry
lithium sulfate Aqueous solution Materials science nanoporous carbon material Physics QC1-999 chemistry.chemical_element Lithium sulfate Condensed Matter Physics Electrochemistry Redox law.invention Capacitor chemistry.chemical_compound chemistry Chemical engineering law Electrode General Materials Science hybrid electrochemical capacitors manganese oxide Physical and Theoretical Chemistry Carbon Voltammetry |
| Zdroj: | Фізика і хімія твердого тіла, Vol 21, Iss 4, Pp 621-627 (2020) |
| ISSN: | 2309-8589 1729-4428 |
| DOI: | 10.15330/pcss.21.4.621-627 |
| Popis: | In this work, the processes occurring in electrochemical systems based on nanoporous carbon material and manganese oxide in an aqueous solution of lithium sulfate are analyzed. Furthermore, it is shows the feasibility of these materials combination cycling as electrodes of a hybrid electrochemical capacitor. The combination of electrode materials with different mechanisms of charge accumulation was determined. Consequently, an increase in the accumulated energy by more than 25% by the formation of an electric double layer and the occurrence of redox reactions based on carbon and manganese oxide respectively. The laboratory sample of an aqueous electrolyte hybrid electrochemical capacitor was formed. Moreover, the laboratory sample is electrochemically stable at an operating voltage of 2 V. |
| Databáze: | OpenAIRE |
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