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Co-doping effect on the properties of scandia stabilized ZrO2

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Abstract

The influence of low concentrations (1 mol %) of few co-dopants (Y2O3, La2O3, CeO2, Gd2O3, Er2O3, ZnO) on the structure and characteristic of 10 mol % scandia stabilized zirconia was studied. Sintering kinetics and thermal expansion coefficients of synthesized solid eletrolytes were determined. It was found that co-doping increased the conductivity of electrolytes at temperature below 550°C. However, at high temperatures, the introduction of co-dopants decreased the conductivity; moreover, this reduction was more severe the more the ionic radii of Zr4+ and co-dopant differ.

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Authors and Affiliations

  1. Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Amundsen Str. 106, Yekaterinburg, 620016, Russia

    A. V. Nikonov, V. R. Khrustov, A. A. Bokov, D. S. Koleukh & S. V. Zayats

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  1. A. V. Nikonov
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  2. V. R. Khrustov
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  3. A. A. Bokov
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  4. D. S. Koleukh
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  5. S. V. Zayats
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Correspondence to A. V. Nikonov.

Additional information

Original Russian Text © A.V. Nikonov, V.R. Khrustov, A.A. Bokov, D.S. Koleukh, S.V. Zayats, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 7, pp. 700–705.

This publication was prepared based on a lecture delivered at the All-Russian Conference with international participation “Fuel Cells and Power Plants,” Chernogolovka, 2013.

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Nikonov, A.V., Khrustov, V.R., Bokov, A.A. et al. Co-doping effect on the properties of scandia stabilized ZrO2 . Russ J Electrochem 50, 625–629 (2014). https://doi.org/10.1134/S1023193514070106

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  • DOI: https://doi.org/10.1134/S1023193514070106

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