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Influence of Non-uniformity of Generation of Active Particles on Deposition Processes and Redox Reactions in a Glow Discharge in Contact with Water

  • Aleksandr N. Ivanov
  • Dmitriy A. Shutov
  • Anna S. Manukyan
  • Vladimir V. Rybkin
Original Paper
  • 7 Downloads

Abstract

The processes of formation of zinc hydroxide and the processes of oxidation–reduction of Cr6+ under action on water solutions of a direct current discharge of atmospheric pressure in air are analyzed. It is shown that the formation of active particles is localized in thin surface layers of the liquid cathode and anode. The solution in the cathode part is acidified, and in the anode one becomes alkaline. As a result, the process of formation of zinc hydroxide and the reduction of Cr6+ begins with the surface of the liquid anode, gradually capturing the entire volume of the solution. The possible role of active particles (OH, H2O2, H, solvated electrons) in the observed phenomena is discussed. Because of the heterogeneity of the solution, the experimentally measured process characteristics (rate constants, reaction rates, energy efficiency, etc.), which are average in volume, should depend not only on the discharge parameters, but also on the geometry of the reactor.

Keywords

Air DC discharge Liquid anode Liquid cathode Oxidation–reduction reactions Precipitation reactions 

Notes

Acknowledgements

This study was carried out in the frame of Project part of State Assignment of the Ministry of Education and Science of the RF, No. 3.1371.2017/4.6.

Supplementary material

11090_2018_9936_MOESM1_ESM.docx (354 kb)
Supplementary material 1 (DOCX 353 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Aleksandr N. Ivanov
    • 1
  • Dmitriy A. Shutov
    • 1
  • Anna S. Manukyan
    • 1
  • Vladimir V. Rybkin
    • 1
  1. 1.Department of Microelectronic Devices and MaterialsIvanovo State University of Chemistry and TechnologyIvanovoRussia

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