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

MPS-Authors
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Götsch,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Türk,  Hanna
Theory, Fritz Haber Institute, Max Planck Society;
Technische Universität München, Department of Chemistry, Chair of Theoretical Chemistry and Catalysis Center;

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Schmidt,  Franz
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Max Planck Institute for Chemical Energy Conversion, Department of Heterogeneous Reactions;

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Max Planck Institute for Chemical Energy Conversion, Department of Heterogeneous Reactions;

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Reuter,  Karsten
Theory, Fritz Haber Institute, Max Planck Society;
Technische Universität München, Department of Chemistry, Chair of Theoretical Chemistry and Catalysis Center;

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Knop-Gericke,  Axel
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Max Planck Institute for Chemical Energy Conversion, Department of Heterogeneous Reactions;

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Scheurer,  Christoph
Theory, Fritz Haber Institute, Max Planck Society;
Technische Universität München, Department of Chemistry, Chair of Theoretical Chemistry and Catalysis Center;

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Lunkenbein,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Götsch, T., Türk, H., Schmidt, F., Vinke, I. C., De Haart, L. G. J., Schlögl, R., et al. (2021). Visualizing the Atomic Structure Between YSZ and LSM: An Interface Stabilized by Complexions? ECS Transactions, 103(1), 1331-1337. doi:10.1149/10301.1331ecst.


Cite as: https://hdl.handle.net/21.11116/0000-0009-0B08-3
Abstract
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.