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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 Научная публикация

Журнал Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779
Вых. Данные Год: 2024, Том: 65, Номер: 1, Страницы: 107-116 Страниц : 10 DOI: 10.1134/s0022476624010104
Ключевые слова perovskite-like oxides, nonstoichiometry, solid solutions, lanthanum manganite, phase transitions
Авторы Kapishnikov A.V. 1,2 , Bespalko Yu.N. 1 , Shuvarakova E.I. 1 , Tsybulya S.V. 1,2 , Isupova L.A. 1 , Gerasimov E.Yu. 1
Организации
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia

Информация о финансировании (1)

1 Российский научный фонд 23-23-00535

Реферат: 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.
Библиографическая ссылка: 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 РИНЦ CAPlus OpenAlex
Оригинальная: 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
Даты:
Поступила в редакцию: 26 сент. 2023 г.
Принята к публикации: 16 окт. 2023 г.
Опубликована в печати: 1 янв. 2024 г.
Опубликована online: 9 февр. 2024 г.
Идентификаторы БД:
Web of science: WOS:001160172200005
РИНЦ: 66528652
Chemical Abstracts: 2024:343860
OpenAlex: W4391696641
Цитирование в БД: Пока нет цитирований
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