On the Dynamics of Development and the Results of the Action of Electric Discharge in the Aquatic Environment

A. V. Khlyustova; Хлюстова А. В.; N. A. Sirotkin; Сироткин Н. А.; A. V. Agafonov; Агафонов А. В.; M. A. Stepovich; Степович М. А.; M. N. Shipko; Шипко М. Н.

doi:10.31857/S1028096023020036

On the Dynamics of Development and the Results of the Action of Electric Discharge in the Aquatic Environment

Authors: Khlyustova A.V.¹, Sirotkin N.A.¹, Agafonov A.V.¹, Stepovich M.A.², Shipko M.N.³
Affiliations:
1. G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences
2. Tsiolkovsky Kaluga State University
3. Lenin Ivanovo State Power Engineering University
Issue: No 2 (2023)
Pages: 57-62
Section: Articles
URL: https://freezetech.ru/1028-0960/article/view/664611
DOI: https://doi.org/10.31857/S1028096023020036
EDN: https://elibrary.ru/DSGHON
ID: 664611

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Abstract

The properties of the synthesized nanostructured materials are determined by the methods of their preparation. The combination of electric discharges with liquid is one of the new tools for the synthesis of pure structures but the conditions for obtaining structures play an important role as in the case of traditional synthesis methods. In this work, the electrical and emission characteristics of a low-temperature direct current plasma in contact with water at currents of 0.25 and 0.80 A are studied. The values of the power (energy) of single discharges are calculated. It has been established that this type of discharge burns in a pulsed mode. The value of the discharge current affects the frequency of occurrence of discharges and the energy of an single discharge. It is shown that low-temperature underwater plasma is an effective tool for the synthesis of nanocomposites based on metal oxides, the precursors of which are metal electrodes. The emission spectroscopy method was used to study the emission spectra of underwater plasma. The sputtering of electrodes during plasma combustion, has been established. X-ray phase analysis showed that the phase composition of the obtained products is determined by the strength of the plasma current. The formation of oxides and hydroxides of Ni and Cr with different valencies of metal ions was found.

Keywords

underwater plasma, pulsed mode, energy per discharge, frequency of pulses, emission spectra, X‑ray diffraction, nanostructures, layered double hydroxide.

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