Redox Sorption of Oxygen Dissolved in Water on Copper Nanoparticles in an Ion Exchange Matrix
- Authors: Vakhnin D.D.1, Pridorogina V.E.1, Polyanskii L.N.1, Kravchenko T.A.1, Gorshkov V.S.1
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Affiliations:
- Voronezh State University
- Issue: Vol 92, No 1 (2018)
- Pages: 172-177
- Section: Physical Chemistry of Surface Phenomena
- URL: https://journals.rcsi.science/0036-0244/article/view/169874
- DOI: https://doi.org/10.1134/S0036024418010296
- ID: 169874
Cite item
Abstract
The redox sorption of molecular oxygen from water by a thin granular layer of a copper-ion exchanger nanocomposite in the currentless mode and under cathodic polarization is studied. The speed of propagation of the boundaries of the chemical reaction of stepwise oxidation of copper nanoparticles under the conditions of polarization slows considerably. At the same time, the amount of electrochemically regenerated copper from the resulting oxides that is capable of interacting with oxygen again grows. The stationarity of the redox sorption of oxygen is due to the equality of the rates of oxidation and reduction of the metallic component of the composite.
About the authors
D. D. Vakhnin
Voronezh State University
Email: krav280937@yandex.ru
Russian Federation, Voronezh, 394018
V. E. Pridorogina
Voronezh State University
Email: krav280937@yandex.ru
Russian Federation, Voronezh, 394018
L. N. Polyanskii
Voronezh State University
Email: krav280937@yandex.ru
Russian Federation, Voronezh, 394018
T. A. Kravchenko
Voronezh State University
Author for correspondence.
Email: krav280937@yandex.ru
Russian Federation, Voronezh, 394018
V. S. Gorshkov
Voronezh State University
Email: krav280937@yandex.ru
Russian Federation, Voronezh, 394018