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Electrode performance of La2NiO4+δ cathodes in contact with La0.9Sr0.1ScO3−δ proton-conducting oxide

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Abstract

Ruddlesden-Popper-structured La2NiO4+δ oxide has been applied for the first time as the cathode for La0.9Sr0.1ScO3−δ proton-conducting oxide. The chemical compatibility of the electrode and electrolyte materials has been studied. Electrode performance has been investigated by means of impedance spectroscopy in dry and wet air conditions in the temperature range of 600–800 °C. Real polarization resistance values were calculated taking into account the shunt effect of electronic hole conductivity in the electrolyte.

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Acknowledgments

Authors are grateful to A.V. Khodimchuk for XRD measurements and to A.S. Farlenkov for SEM investigation.

Funding

The study was financially supported by the grant of the Russian Science Foundation, project No. 16-13-00053. The facilities of the shared access center “Composition of Compounds” of IHTE UB RAS were used. The education activity of Ph.D. and master students involved in this work is supported by Act 211 of the Government of the Russian Federation, agreement No. 02 A03.21.0006.

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Authors and Affiliations

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

    E. P. Antonova, A. Yu. Stroeva & E. S. Tropin

  2. Ural Federal University, Ekaterinburg, 620002, Russia

    E. S. Tropin

Authors
  1. E. P. Antonova
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  2. A. Yu. Stroeva
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  3. E. S. Tropin
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Correspondence to E. P. Antonova.

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Antonova, E.P., Stroeva, A.Y. & Tropin, E.S. Electrode performance of La2NiO4+δ cathodes in contact with La0.9Sr0.1ScO3−δ proton-conducting oxide. J Solid State Electrochem 24, 1447–1451 (2020). https://doi.org/10.1007/s10008-020-04535-z

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