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Composition dependent self‐regenerative property of perovskite‐type oxides |
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| Authors: | Jagoda Kuc Yucheng Zhang Rolf Erni Songhak Yoon Lassi Karvonen Anke Weidenkaff Santhosh Kumar Matam |
| Affiliation: | 1. Laboratory of Materials for Energy Conversion, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland;2. Electron Microscopy Center, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland;3. Materials Chemistry, Institute for Materials Science, University of Stuttgart, Stuttgart, Germany |
| Abstract: | The self‐regenerative property of LaCo1–x –yPdx Zny O3±δ and LaFe1–x –yPdx Zny O3±δ solid solutions with monometallic Pd or bimetallic Pd/Zn substituents for Co or Fe is studied under a redox cycle by high angular annular dark‐field scanning transmission electron microscopy (STEM‐HAADF) and energy dispersive X‐ray spectroscopy (EDX) and X‐ray diffraction (XRD). These results reveal that the composition of perovskites determines the self‐regenerative property that occurs largely in LaCo1–x –yPdx Zny O3±δ but is limited greatly in LaFe1–x –yPdx Zny O3±δ. (© 2015 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim) |
| Keywords: | perovskites composition self‐regeneration scanning transmission electron microscopy |