Strategies for optimizing the single GdSrFeO4 phase synthesis

This work provides data on strategies for single GdSrFeO phase solid state synthesis. Earlier works have shown that under the solid-state synthesis conditions, the GdSrFeO preparation is hampered by the formation of non-target product: Gd SrFe . This work approach led to the solid-phase synthesis Gd...

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Bibliographic Details
Published in:Open Chemistry 2023-12, Vol.21 (1), p.129-48
Main Authors: Kenges, Kairat Maratuly, Tugova, Ekaterina Alekseevna
Format: Article
Language:English
Subjects:
phase formation
rare earth ferrites
solid state reactions
TEC
thermal stability
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Summary:This work provides data on strategies for single GdSrFeO phase solid state synthesis. Earlier works have shown that under the solid-state synthesis conditions, the GdSrFeO preparation is hampered by the formation of non-target product: Gd SrFe . This work approach led to the solid-phase synthesis GdSrFeO scheme change. GdSrFeO was characterized by X-Ray, scanning electron microscopy/energy dispersive X-ray spectroscopy, dilatometry and complex thermal analysis methods. GdSrFeO is stable in the wide range of studied temperatures 40–1,400°C in air. The sintering start temperature was determined to be 985°C. GdSrFeO has a thermal expansion coefficient of 30 × 10 K . The thermal stability is excellent for further investigation and potential for application of the materials as SOFC, for example. The study of catalytic stability of the obtained GdSrFeO is to be a subject of future work as well.
ISSN:2391-5420
DOI:10.1515/chem-2023-0170