Influence of Oxygen Nonstoichiometry on the Structural Stability of La1–xCaxMn0.5Co0.5O3 Complex Oxides (x = 0.2–0.6) Subjected to Heat Treatment in He Full article
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Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2024, Volume: 65, Number: 1, Pages: 107-116 Pages count : 10 DOI: 10.1134/s0022476624010104 | ||||
| Tags | perovskite-like oxides, nonstoichiometry, solid solutions, lanthanum manganite, phase transitions | ||||
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Funding (1)
| 1 | Russian Science Foundation | 23-23-00535 |
Abstract:
The La1–xCaxMn0.5Co0.5O3 solid solutions (x = 0.2-0.6) are prepared by the Pechini method and characterized by a number of physical and chemical methods. It is shown that the oxygen nonstoichiometry in the samples significantly increases with increasing number of calcium cations in the La sublattice. The thermal analysis of the samples shows that the lattice oxygen is released at ~600 °C for all samples and that its amount increases with increasing calcium content. The in situ powder XRD data obtained in the He atmosphere indicate that the studied solid solutions with x ≥ 0.4 are unstable under these conditions and may exhibit partial structural destruction and that the ABO3 complex oxide in the system with x = 0.6 transforms into a phase characterized by the A2BO4 structural type of the Ruddlesden–Popper series.
Cite:
Kapishnikov A.V.
, Bespalko Y.N.
, Shuvarakova E.I.
, Tsybulya S.V.
, Isupova L.A.
, Gerasimov E.Y.
Influence of Oxygen Nonstoichiometry on the Structural Stability of La1–xCaxMn0.5Co0.5O3 Complex Oxides (x = 0.2–0.6) Subjected to Heat Treatment in He
Journal of Structural Chemistry. 2024. V.65. N1. P.107-116. DOI: 10.1134/s0022476624010104 WOS Scopus РИНЦ AN OpenAlex
Influence of Oxygen Nonstoichiometry on the Structural Stability of La1–xCaxMn0.5Co0.5O3 Complex Oxides (x = 0.2–0.6) Subjected to Heat Treatment in He
Journal of Structural Chemistry. 2024. V.65. N1. P.107-116. DOI: 10.1134/s0022476624010104 WOS Scopus РИНЦ AN OpenAlex
Original:
Капишников А.В.
, Беспалко Ю.Н.
, Шуваракова Е.И.
, Цыбуля С.В.
, Исупова Л.А.
, Герасимов Е.Ю.
Влияние кислородной нестехиометрии на структурную стабильность в сложных оксидах La1–xCaxMn0.5Co0.5O3 (x = 0.2–0.6) в условиях нагрева в атмосфере He
Журнал структурной химии. 2024. Т.65. №1. 120613 :1-10. DOI: 10.26902/jsc_id120613 РИНЦ OpenAlex
Влияние кислородной нестехиометрии на структурную стабильность в сложных оксидах La1–xCaxMn0.5Co0.5O3 (x = 0.2–0.6) в условиях нагрева в атмосфере He
Журнал структурной химии. 2024. Т.65. №1. 120613 :1-10. DOI: 10.26902/jsc_id120613 РИНЦ OpenAlex
Dates:
| Submitted: | Sep 26, 2023 |
| Accepted: | Oct 16, 2023 |
| Published print: | Jan 1, 2024 |
| Published online: | Feb 9, 2024 |
Identifiers:
| Web of science: | WOS:001160172200005 |
| Scopus: | 2-s2.0-105003038391 |
| Elibrary: | 66528652 |
| Chemical Abstracts: | 2024:343860 |
| OpenAlex: | W4391696641 |
Citing:
| DB | Citing |
|---|---|
| Scopus | 1 |