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

P.I. Kolkovskyi; B.K. Ostafiychuk; M.I. Kolkovskyi; N.Ya. Ivanichok; S-V.S. Sklepova; B.I. Rachiy

doi:10.15330/pcss.21.4.621-627

Authors

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

DOI:

https://doi.org/10.15330/pcss.21.4.621-627

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.

References

B.E. Conway, Electrochemical Supercapacitors: Scientific Fundamentals and Technological Applications (N.Y. Kluwer Academic Plenum Publishers, 1999).

B.K. Ostafiychuk, R.P. Lisovskiy, A.H.Z. Al-Saedi, B.I. Rachiy, V.O. Kotsyubynsky, P.I. Kolkovsky, R.I. Merena, A.B. Hrubiak, Journal of Nano- and Electronic Physics 11(3), 03036 (2019) (doi: 10.21272/jnep.11(3).03036).

R. Lisovsky, B. Ostafiychuk, I. Budzulyak, V. Kotsyubynsky, A. Boychuk, B. Rachiy, Acta Physica Polonica A. 133(4), 876 (2018) (doi: 10.12693/APhysPolA.133.876).

B. Conway, W. Pell, Proceedings of the 12-th International Seminar on DLC and Similar Energy Storage Devices (Deerfield Beach, Florida, USA, 2002).

A.I. Belyakov, The 6-th International Similar on DLC and Seminar Energy Storage Devices ( Deerfield Beach, Florida, USA, 1996).

J. Miller, P. Simon, Science 321(5889), 651 (2008) (doi: 10.1126/science.1158736).

L. Zhang, X. Zhao, Chemical Society Reviews 38(9), 2520 (2009) (doi: 10.1039/B813846J).

J. Miller, P. Simon, Science 321(5889), 651 (2008) (doi: 10.1126/science.1158736).

L. Zhang, X. Zhao, Chemical Society Reviews 38(9), 2520 (2009) (doi: 10.1039/B813846J).

P.I. Kolkovskyi, B.I. Rachiy, M.I. Kolkovskyi, B.K. Ostafiychuk, I.P. Yaremiy, V.O. Kotsyubynsky, & R.V. Ilnitsky, Synthesis and Electrochemical Properties of Mesoporous α-MnO2 for Supercapacitor Applications, Journal of nano and electronic physics 12(3), 03030 (2020) (doi: 10.21272/jnep.12(3).03030).

B.K. Ostafiychuk, M.I. Kolkovskyi, B.I. Rachiy, P. I. Kolkovskyi, N.Y. Ivanichok, & R.V. Ilnitsky, Physics and Chemistry of Solid State, 21(1), 27 (2020) (doi: 10.15330/pcss.21.1.27-34

B.I. Rachiy, I.M. Budzulyak, V.M. Vashchynsky, N.Y. Ivanichok, M.O. Nykoliuk, Nanoscale Research Letters 11(1), art. no. 18, 1 (2016),

H. Wang, L. Pilon, Electrochimica Acta 64, 130 (2012).

S. Ardizzone, G. Fregonara, & S. Trasatti, Electrochimica Acta 35, 263 (1990).