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

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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. / Kapishnikov, A. V.; Bespalko, Yu. N.; Shuvarakova, E. I. et al.

In: Journal of Structural Chemistry, Vol. 65, No. 1, 02.03.2024, p. 107-116.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4dc9c80afba44a0485d8c6e045a8f610,

title = "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",

abstract = "The La 1– x Ca x Mn 0.5 Co 0.5 O 3 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 AB O 3 complex oxide in the system with x = 0.6 transforms into a phase characterized by the A 2 B O 4 structural type of the Ruddlesden–Popper series.",

author = "Kapishnikov, {A. V.} and Bespalko, {Yu. N.} and Shuvarakova, {E. I.} and Tsybulya, {S. V.} and Isupova, {L. A.} and Gerasimov, {E. Yu.}",

note = "This work was funded by the Russian Science Foundation (project No. 23-23-00535) and was performed using the equipment of the Shared Research Center “National Center of Investigation of Catalysts” at the Boreskov Institute of Catalysis Siberian Branch, Russian Academy of Sciences.",

year = "2024",

month = mar,

day = "2",

doi = "10.1134/s0022476624010104",

language = "English",

volume = "65",

pages = "107--116",

journal = "Journal of Structural Chemistry",

issn = "0022-4766",

publisher = "Springer GmbH & Co, Auslieferungs-Gesellschaf",

number = "1",

}

RIS

TY - JOUR

T1 - 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

AU - Kapishnikov, A. V.

AU - Bespalko, Yu. N.

AU - Shuvarakova, E. I.

AU - Tsybulya, S. V.

AU - Isupova, L. A.

AU - Gerasimov, E. Yu.

N1 - This work was funded by the Russian Science Foundation (project No. 23-23-00535) and was performed using the equipment of the Shared Research Center “National Center of Investigation of Catalysts” at the Boreskov Institute of Catalysis Siberian Branch, Russian Academy of Sciences.

PY - 2024/3/2

Y1 - 2024/3/2

N2 - The La 1– x Ca x Mn 0.5 Co 0.5 O 3 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 AB O 3 complex oxide in the system with x = 0.6 transforms into a phase characterized by the A 2 B O 4 structural type of the Ruddlesden–Popper series.

AB - The La 1– x Ca x Mn 0.5 Co 0.5 O 3 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 AB O 3 complex oxide in the system with x = 0.6 transforms into a phase characterized by the A 2 B O 4 structural type of the Ruddlesden–Popper series.

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001160172200005

UR - https://www.mendeley.com/catalogue/e93dd665-7cda-3022-9a8f-563accfab7f2/

U2 - 10.1134/s0022476624010104

DO - 10.1134/s0022476624010104

M3 - Article

VL - 65

SP - 107

EP - 116

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 1

ER -

ID: 61171168