Abstract: Solid solutions of the nominal composition La1–y□yMn1–xFexO3±δ (y = 0, 0.1, 0.2, x = 0.5, 0.55, 0.58) with the non-stoichiometric concentration of La cations are synthesized by the polymer-salt composition method and characterized by a set of physicochemical techniques. An increase in the degree of Fe cation doping is shown to decrease the particle size of solid solutions with retaining the perovskite structure. Particle enrichment with Fe cations and the presence of disordered crystal structure layers on the perovskite phase surface is detected by high-resolution transmission electron microscopy. According to the thermogravimetric data, the composition with x = 0.58 is characterized by a smaller weight loss, which seems to be due to the partial blocking of the perovskite phase surface by disordered layers enriched with Fe.

Cite: Gerasimov E.Y. , Zhirnova A.S. , Smal′ E.A. , Pochtar’ A.A.
Study of the Microstructure Formation of Perovskite-Like Oxides in the LaMnO3–LaFeO3 System
Journal of Structural Chemistry. 2025. V.66. N3. P.586-594. DOI: 10.1134/s002247662503014x WOS Scopus AN

Original: Герасимов Е.Ю. , Жирнова А.С. , Смаль Е.А. , Почтарь А.А.
Исследование формирования микроструктуры перовскитоподобных оксидов системы LaMnO3 - LaFeO3
Журнал структурной химии. 2025. Т.66. №3. 142174 :1-9. DOI: 10.26902/jsc_id142174 РИНЦ OpenAlex

Dates:

Submitted:	Nov 20, 2024
Accepted:	Nov 29, 2024
Published online:	Mar 28, 2025

Identifiers:

Web of science:	WOS:001456015300004
Scopus:	2-s2.0-105001416699
Chemical Abstracts:	2025:791566

Citing: Пока нет цитирований

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