Ceramic and Transport Characteristics of Electrolytes Based on Mg-Doped LaYO3
- Authors: Kas’yanova A.V.1,2, Lyagaeva Y.G.1,2, Danilov N.A.1,2, Plaksin S.V.1, Farlenkov A.S.1,2, Medvedev D.A.1,2, Demin A.K.1,2
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Affiliations:
- Institute of High-Temperature Electrochemistry, Ural Branch
- Ural Federal University named after the first president of Russia B.N. Yeltsin
- Issue: Vol 91, No 5 (2018)
- Pages: 770-777
- Section: Applied Electrochemistry and Metal Corrosion Protection
- URL: https://journals.rcsi.science/1070-4272/article/view/215821
- DOI: https://doi.org/10.1134/S1070427218050075
- ID: 215821
Cite item
Abstract
Effect of magnesium on the sinterability, phase composition, microstructure, and transport properties of proton-conducting materials of composition LaY1–xMgxO3–δ (х = 0, 0.05, 0.1) was studied. Ceramic samples were obtained by using the citrate-nitrate synthesis method at various sintering temperatures (1250–1400°C). It was shown that, for the samples with x = 0.05 and 0.1, the relative density was no less than 95% at a sintering temperature of 1350°C, whereas undoped lanthanum nitrate has this density at 1450°C. An X-ray diffraction analysis and scanning electron microscopy demonstrated that introduction of a small amount of magnesium (x = 0.05) is sufficient for forming the single-phase and high-dense ceramics. Electrical conductivity data show that the LaY0.95Mg0.05O3–δ sample has high overall and ionic conductivities.
About the authors
A. V. Kas’yanova
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first president of Russia B.N. Yeltsin
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620075
Yu. G. Lyagaeva
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first president of Russia B.N. Yeltsin
Author for correspondence.
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620075
N. A. Danilov
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first president of Russia B.N. Yeltsin
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620075
S. V. Plaksin
Institute of High-Temperature Electrochemistry, Ural Branch
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137
A. S. Farlenkov
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first president of Russia B.N. Yeltsin
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620075
D. A. Medvedev
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first president of Russia B.N. Yeltsin
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620075
A. K. Demin
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University named after the first president of Russia B.N. Yeltsin
Email: yulia.lyagaeva@ya.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620075
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