Accumulation charge mechanisms in electrochemical systems formed based on activated carbon and manganese oxide
DOI:
https://doi.org/10.15330/pcss.21.1.19-34Keywords:
hybrid electrochemical supercapacitors, porous carbon material, manganese oxideAbstract
In this work, the porous structure of the carbon material and the crystalline structure of manganese oxide α - modification (α - MnO2) have been investigated. The electrochemical performance of symmetric and asymmetric supercapacitors (α - MnO2 / Activated carbon) was investigated by cyclic voltammetry and galvanostatic cycling methods. The processes occur mainly at the electrode – electrolyte interface have been analyzed. It was determined that at discharge currents of 0.5 - 5 mA, the specific capacitance value for the α - MnO2 / Activated carbon hybrid capacitor exceeds the value of the symmetric capacitor by 45 - 55 % under the same conditions.
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) (https://doi.org/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). (https://doi.org/10.12693/APhysPolA.133.876).
A.I. Kachmar, V.M. Boichuk, I.M. Budzulyak, V.O. Kotsyubynsky, B.I. Rachiy & R.P. Lisovskiy, Fullerenes, Nanotubes and Carbon Nanostructures 27(9), 669 (2019) (https://doi.org/10.1080/1536383X.2019.1618840).
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) (https://doi.org/10.1126/science.1158736).
L. Zhang, X. Zhao, Chemical Society Reviews 38(9), 2520 (2009) (https://doi.org/10.1039/B813846J).
B.K. Ostafiychuk, I.M. Budzulyak, B.I. Rachiy, V.M. Vashchynsky, V.I. Mandzyuk, R.P. Lisovsky and L.O. Shyyko, Nanoscale Research Letters 10(1), 65 (2015) (https://doi.org/10.1186/s11671-015-0762-1).
A.P. Karnaukhov, Adsorption. The texture of dispersed and porous materials (Novosibirsk, Science, Sib. enterprise RAN Publ, 1999).
S. Brunauer, P. Emmett, E. Teller, Journal of the American Chemical Society 60(2), 309 (1938) (https://doi.org/10.1021/ja01269a023).
A.V. Kiselev, Surface phenomena. Adsorption (Moscow, Chemistry, 1969).
NOVA operating manual (Quantachrome Instruments, 2010).
T.G. Plachenov, S.D. Kolosencev, Porometriya (Leningrad, Chemistry, 1988).
H. Wang, L. Pilon, Electrochimica Acta 64(1), 130 (2012) (https://doi.org/10.1016/j.electacta.2011.12.118).
S. Ardizzone, G. Fregonara, S. Trasatti, Electrochimica Acta 35(1), 263 (1990) (https://doi.org/10.1016/0013-4686(90)85068-X).
Downloads
Published
How to Cite
Issue
Section
