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Investigation of the characteristics of CU2O particles obtained by a plasma-liquid process

Liliya Frolova (Department of Inorganic Substances, Ukrainian State University of Chemical Technology, Dnipro, Ukraine)
Olga Sergeyeva (Department of Inorganic Substances, Ukrainian State University of Chemical Technology, Dnipro, Ukraine)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 21 December 2022

5

Abstract

Purpose

This paper aims to develop a simple and efficient plasma technology for the production of copper (I) oxide with the ability to control the morphology and size of Cu2O particles. To achieve this goal, the phase composition of the precipitate formed was estimated, the composition and size of the obtained particles were determined and Pourbaix diagrams were constructed.

Design/methodology/approach

An integrated approach combining thermodynamic calculations and experimental research methods is used. The constructed Pourbaix diagram makes it possible to suggest the phase composition of the sediment. The use of cyclic voltammetry made it possible to establish the mechanism of deposit formation on the cathode during the treatment of the solution with contact nonequilibrium low-temperature plasma. The resulting product was examined using X-ray phase analysis and scanning electron microscopy.

Findings

The article presents the results of theoretical and experimental studies on the synthesis of copper (II) oxide. The influence of the parameters of plasma-chemical synthesis on the shape and phase composition of the deposits formed has been studied.

Originality/value

A plasma-chemical technology for obtaining copper oxide in the form of single crystals of a regular faceted shape is proposed. The mechanism of formation of copper oxide has been established by cyclic voltammetry. The constructed Pourbaix diagrams show the area of existence of the product.

Keywords

Citation

Frolova, L. and Sergeyeva, O. (2022), "Investigation of the characteristics of CU2O particles obtained by a plasma-liquid process", Pigment & Resin Technology, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/PRT-08-2022-0099

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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