International Conference Physics.SPb/2024
Surface physics, thin films

Nanostructures based on carbon nanotubes and manganese oxide to enhance the electrochemical characteristics of carbon black

S. N. Nesov^ab, I. A. Lobov^ac, S. A. Matyushenko^a, D. V. Sokolov^a, V. V. Bolotov^a, E. A. Drozdova<sup>bd

a</sup> Omsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, Omsk, Russia
^b Omsk State Technical University, Omsk, Russia
^c Omsk State Medical University, Omsk, Russia
^d OOO "Omsktekhuglerod", Omsk, Russia

Abstract: A composite based on multi-walled carbon nanotubes and manganese oxide with the addition of silver was obtained by liquid chemical deposition. It has been established that under this synthesis mode, a layer consisting of randomly oriented K$_x$MnO$_2$ nanocrystallites with a high interplanar distance (up to 6.5 $\mathring{\mathrm{A}}$) is formed on the surface of the MNT. It is shown that the resulting composite can be promising as an active component for increasing the capacitance and speed characteristics of commercial grades of carbon black when used in supercapacitors.

Keywords: supercapacitor, specific capacity, redox reactions, rate capability.

Received: 30.04.2024
Revised: 28.10.2024
Accepted: 30.10.2024

DOI: 10.61011/FTT.2024.12.59584.6559PA

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