Email this article Electrical transport and kinetics of electrode processes in the system of (H2 + H2O + Ar), Pt|La0.9Sr0.1ScO3–δ
- Authors: Antonova E.P.1, Bronin D.I.1,2
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Affiliations:
- Institute of High-Temperature Electrochemistry, Ural Branch
- Institute of Chemical Engineering
- Issue: Vol 52, No 7 (2016)
- Pages: 595-599
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/187943
- DOI: https://doi.org/10.1134/S102319351607003X
- ID: 187943
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Abstract
The method of impedance spectroscopy is used to study the electrochemical behavior of (H2 + H2O + Ar), Pt|La0.9Sr0.1ScO3–δ system depending on the temperature (500–700°C) and gas phase composition in the range of hydrogen gas pressures of–1.3 < log(pH2) <–0.01 and water vapor gas pressures of–1.3 < log(pH2O) <–0.03. It is found that conductivity of electrolyte increases and polarization resistance decreases at an increase in water and hydrogen content in the gas phase. The possible causes of such behavior of conductivity are considered and the possible mechanism of the electrode reaction is suggested for the temperature of 700°C.
About the authors
E. P. Antonova
Institute of High-Temperature Electrochemistry, Ural Branch
Author for correspondence.
Email: ekantonova@e1.ru
Russian Federation, ul. Akademicheskaya 20, Ekaterinburg, 620990
D. I. Bronin
Institute of High-Temperature Electrochemistry, Ural Branch; Institute of Chemical Engineering
Email: ekantonova@e1.ru
Russian Federation, ul. Akademicheskaya 20, Ekaterinburg, 620990; ul. Mira 19, Ekaterinburg, 620002
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