Visualizing the Atomic Structure Between YSZ and LSM: An Interface Stabilized by Complexions?

The YSZ/LSM electrolyte/electrode interface of a half cell is investigated using electron microscopic and theoretical techniques. It is found that, due to strong interdiffusion of all cations except for Sr across the phase boundary, a so-called complexion is formed on the YSZ-side of the interface....

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Published inECS transactions Vol. 103; no. 1; pp. 1331 - 1337
Main Authors Götsch, Thomas, Tuerk, Hanna, Schmidt, Franz-Philipp, Vinke, I. C., De Haart, L. G. J. (Bert), Schlögl, Robert, Reuter, Karsten, Eichel, Rüdiger-A., Knop-Gericke, Axel, Scheurer, Christoph, Lunkenbein, Thomas
Format Journal Article
LanguageEnglish
Published 09.07.2021
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Summary:The YSZ/LSM electrolyte/electrode interface of a half cell is investigated using electron microscopic and theoretical techniques. It is found that, due to strong interdiffusion of all cations except for Sr across the phase boundary, a so-called complexion is formed on the YSZ-side of the interface. This complexion is thermodynamically stabilized by the neighboring bulk phases and its consequences on activity and stability of SOCs are further discussed.
ISSN:1938-5862
1938-6737
DOI:10.1149/10301.1331ecst