Oxygen diffusion and surface exchange kinetics for the mixed-conducting oxide La0.6Sr0.4Co0.8Fe0.2O3–δ

Porotnikova, N. M.; Antonova, E. P.; Khodimchuk, A. V.; Tropin, E. S.; Farlenkov, A. S.; Ananyev, M. V.

doi:10.15826/chimtech.2018.5.04.04

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Поле DC	Значение	Язык
dc.contributor.author	Porotnikova, N. M.	en
dc.contributor.author	Antonova, E. P.	en
dc.contributor.author	Khodimchuk, A. V.	en
dc.contributor.author	Tropin, E. S.	en
dc.contributor.author	Farlenkov, A. S.	en
dc.contributor.author	Ananyev, M. V.	en
dc.date.accessioned	2019-01-28T11:58:30Z	-
dc.date.available	2019-01-28T11:58:30Z	-
dc.date.issued	2018	-
dc.identifier.citation	Oxygen diffusion and surface exchange kinetics for the mixed-conducting oxide La0.6Sr0.4Co0.8Fe0.2O3–δ / N. M. Porotnikova, E. P. Antonova, A. V. Khodimchuk, E. S. Tropin, A. S. Farlenkov, M. V. Ananyev // Chimica Techno Acta. — 2018. — Vol. 5, No. 4. — P. 196–204.	en
dc.identifier.issn	2409-5613 (Print)	-
dc.identifier.issn	2411-1414 (Online)	-
dc.identifier.uri	http://elar.urfu.ru/handle/10995/66234	-
dc.description	Received: 14.11.2018. Accepted: 11.12.2018. Published: 31.12.2018.	en
dc.description.abstract	Studies of oxygen surface exchange kinetics for La0.6Sr0.4Co0.8Fe0.2O3–δ oxide were performed using the technique of isotopic exchange of molecular oxygen with analysis of gas phase isotopic composition in a static circulation system at the temperatures of 600–800 °С in the oxygen pressure range of 0.27–2.13 kPa. The values of interphase exchange rate and oxygen diffusion coefficient were determined. The effective activation energies for oxygen exchange and diffusion processes as well as the exponents in the dependence of these values versus oxygen pressure in the double logarithmic coordinates were calculated. The process of oxygen dissociative adsorption at the surface of La0.6Sr0.4Co0.8Fe0.2O3–δ oxide was found to be the rate-determining stage.	en
dc.description.sponsorship	This work is partly supported by the Russian Science Foundation (Project No. 17‑73‑10196) using facilities of shared access center “Composition of Compounds” of IHTE UB RAS.	en
dc.format.mimetype	application/pdf	en
dc.language.iso	ru	en
dc.publisher	Уральский федеральный университет	ru
dc.relation	info:eu-repo/grantAgreement/RSF//17-73-10196	en
dc.relation.ispartof	Chimica Techno Acta. 2018. Vol. 5. № 4	en
dc.subject	OXYGEN ISOTOPE EXCHANGE	en
dc.subject	OXYGEN DIFFUSION	en
dc.subject	LANTHANUM-STRONTIUM COBALTITE-FERRITE	en
dc.subject	RATE-DETERMINING STAGE	en
dc.title	Oxygen diffusion and surface exchange kinetics for the mixed-conducting oxide La0.6Sr0.4Co0.8Fe0.2O3–δ	en
dc.type	Article	en
dc.type	info:eu-repo/semantics/article	en
dc.type	info:eu-repo/semantics/publishedVersion	en
dc.identifier.rsi	https://elibrary.ru/item.asp?id=36845725	-
dc.identifier.doi	10.15826/chimtech.2018.5.04.04	-
local.contributor.employee	Porotnikova, N. M.	en
local.contributor.employee	Antonova, E. P.	en
local.contributor.employee	Khodimchuk, A. V.	en
local.contributor.employee	Tropin, E. S.	en
local.contributor.employee	Farlenkov, A. S.	en
local.contributor.employee	Ananyev, M. V.	en
local.description.firstpage	196	-
local.description.lastpage	204	-
local.issue	4	-
local.volume	5	-
local.fund.rsf	17-73-10196	-
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