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Activation of oxygen reaction by praseodymium oxide film on platinum electrode in contact with YSZ electrolyte

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Abstract

The method of impedancemetry is used to study electrochemical activity of platinum electrodes in contact with the solid electrolyte of YSZ (ZrO2+10 mol % Y2O3). Electrodes are activated by small additives of pradeodymium oxide PrO x (0.1–0.3 mg/cm2) by their impregnation by praseodymium nitrate solution with the further thermal treatment at 850°C and are studied in the cases when PrO x forms a film on the electrolyte and when no activator film is formed. The effect of the number of electrode activations on the electrochemical activity of platinum electrodes is studied.

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Authors and Affiliations

  1. Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, ul. Akademicheskaya 20, Ekaterinburg, 620137, Russia

    A. I. Vshivkova & V. P. Gorelov

Authors
  1. A. I. Vshivkova
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  2. V. P. Gorelov
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Correspondence to A. I. Vshivkova.

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Original Russian Text © A.I. Vshivkova, V.P. Gorelov, 2016, published in Elektrokhimiya, 2016, Vol. 52, No. 5, pp. 549–554.

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Vshivkova, A.I., Gorelov, V.P. Activation of oxygen reaction by praseodymium oxide film on platinum electrode in contact with YSZ electrolyte. Russ J Electrochem 52, 488–493 (2016). https://doi.org/10.1134/S102319351605013X

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  • DOI: https://doi.org/10.1134/S102319351605013X

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