Standard

Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ. / Kovalev, Ivan; Guskov, Rostislav; Gongola, Marko et al.

In: Ceramics International, Vol. 50, No. 7, 01.04.2024, p. 11855-11861.

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

Harvard

Kovalev, I, Guskov, R, Gongola, M, Popov, M, Chizhik, S & Nemudry, A 2024, 'Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ', Ceramics International, vol. 50, no. 7, pp. 11855-11861. https://doi.org/10.1016/j.ceramint.2024.01.089

APA

Kovalev, I., Guskov, R., Gongola, M., Popov, M., Chizhik, S., & Nemudry, A. (2024). Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ. Ceramics International, 50(7), 11855-11861. https://doi.org/10.1016/j.ceramint.2024.01.089

Vancouver

Kovalev I, Guskov R, Gongola M, Popov M, Chizhik S, Nemudry A. Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ. Ceramics International. 2024 Apr 1;50(7):11855-11861. doi: 10.1016/j.ceramint.2024.01.089

Author

Kovalev, Ivan ; Guskov, Rostislav ; Gongola, Marko et al. / Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ. In: Ceramics International. 2024 ; Vol. 50, No. 7. pp. 11855-11861.

BibTeX

@article{04abe61c8ed643519541ac5bae8b06dc,
title = "Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ",
abstract = "Equilibrium properties and kinetic properties of strontium-doped lanthanum ferrite La0.6Sr0.4FeO3−δ were studied by an original approach involving two methods: oxygen partial pressure relaxation (with determination of equilibrium exchange rate R0 and a chemical diffusion coefficient in oxide: Dchem) and a quasi-equilibrium oxygen release [with construction of equilibrium isothermal diagram “lg pO2 vs. (3 − δ) vs. T”]. Activation energies determined for R0 and Dchem were 120 ± 20 and 30 ± 2 kJ/mol, respectively. It was shown that the linear free-energy relationship—between activation energy of the reaction rate constant and standard Gibbs energy of the reaction—is of the Br{\o}nsted–Evans–Polanyi type.",
keywords = "Continuous homologous series, Lanthanum strontium ferrite, MIEC oxide, Oxygen exchange, Oxygen partial pressure relaxation, Quasi-equilibrium oxygen release",
author = "Ivan Kovalev and Rostislav Guskov and Marko Gongola and Mikhail Popov and Stanislav Chizhik and Alexander Nemudry",
note = "This work was supported by the Russian Science Foundation (project No. 22-73-10200 ).",
year = "2024",
month = apr,
day = "1",
doi = "10.1016/j.ceramint.2024.01.089",
language = "English",
volume = "50",
pages = "11855--11861",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier",
number = "7",

}

RIS

TY - JOUR

T1 - Oxygen exchange kinetics on La0.6Sr0.4FeO3−δ

AU - Kovalev, Ivan

AU - Guskov, Rostislav

AU - Gongola, Marko

AU - Popov, Mikhail

AU - Chizhik, Stanislav

AU - Nemudry, Alexander

N1 - This work was supported by the Russian Science Foundation (project No. 22-73-10200 ).

PY - 2024/4/1

Y1 - 2024/4/1

N2 - Equilibrium properties and kinetic properties of strontium-doped lanthanum ferrite La0.6Sr0.4FeO3−δ were studied by an original approach involving two methods: oxygen partial pressure relaxation (with determination of equilibrium exchange rate R0 and a chemical diffusion coefficient in oxide: Dchem) and a quasi-equilibrium oxygen release [with construction of equilibrium isothermal diagram “lg pO2 vs. (3 − δ) vs. T”]. Activation energies determined for R0 and Dchem were 120 ± 20 and 30 ± 2 kJ/mol, respectively. It was shown that the linear free-energy relationship—between activation energy of the reaction rate constant and standard Gibbs energy of the reaction—is of the Brønsted–Evans–Polanyi type.

AB - Equilibrium properties and kinetic properties of strontium-doped lanthanum ferrite La0.6Sr0.4FeO3−δ were studied by an original approach involving two methods: oxygen partial pressure relaxation (with determination of equilibrium exchange rate R0 and a chemical diffusion coefficient in oxide: Dchem) and a quasi-equilibrium oxygen release [with construction of equilibrium isothermal diagram “lg pO2 vs. (3 − δ) vs. T”]. Activation energies determined for R0 and Dchem were 120 ± 20 and 30 ± 2 kJ/mol, respectively. It was shown that the linear free-energy relationship—between activation energy of the reaction rate constant and standard Gibbs energy of the reaction—is of the Brønsted–Evans–Polanyi type.

KW - Continuous homologous series

KW - Lanthanum strontium ferrite

KW - MIEC oxide

KW - Oxygen exchange

KW - Oxygen partial pressure relaxation

KW - Quasi-equilibrium oxygen release

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85182642078&origin=inward&txGid=c701e8a95db4b74fc02455ee9127b64d

UR - https://www.mendeley.com/catalogue/11cdcf92-eec6-31d8-b085-11fca20d8679/

U2 - 10.1016/j.ceramint.2024.01.089

DO - 10.1016/j.ceramint.2024.01.089

M3 - Article

VL - 50

SP - 11855

EP - 11861

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 7

ER -

ID: 61085401