Mechanisms of charge accumulation in electrochemical systems formed based on of nanoporous carbon and manganese oxide

  • P.I. Kolkovskyi Vasyl Stefanyk Precarpathian National University
  • B.K. Ostafiychuk Vasyl Stefanyk Precarpathian National University
  • M.I. Kolkovskyi Vasyl Stefanyk Precarpathian National University
  • N.Ya. Ivanichok Vasyl Stefanyk Precarpathian National University
  • S-V.S. Sklepova Vasyl Stefanyk Precarpathian National University
  • B.I. Rachiy Vasyl Stefanyk Precarpathian National University
Keywords: nanoporous carbon material, manganese oxide, hybrid electrochemical capacitors, lithium sulfate, voltammetry

Abstract

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.

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Published
2020-12-30
How to Cite
[1]
KolkovskyiP., OstafiychukB., KolkovskyiM., IvanichokN., SklepovaS.-V. and RachiyB. 2020. Mechanisms of charge accumulation in electrochemical systems formed based on of nanoporous carbon and manganese oxide. Physics and Chemistry of Solid State. 21, 4 (Dec. 2020), 621-627. DOI:https://doi.org/10.15330/pcss.21.4.621-627.
Section
Scientific articles

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