La1 – xCaxFeO3 – δ (x = 0–1) Perovskites Prepared by the Pechini Method: Catalytic Activity in Deep Methane and CO Oxidation Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2015, Volume: 56, Number: 6, Pages: 781-787 Pages count : 7 DOI: 10.1134/S0023158415050092 | ||
| Tags | La1-x Ca x FeO3-δ, methane and CO oxidation, microstructure, perovskites, stability | ||
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Abstract:
The catalytic activity of a series of La1 – xCaxFeO3 – δ (x = 0–1) materials prepared by the Pechini method from polymer–salt stocks has been investigated, and the phase composition and microstructure of these materials before and after testing them in methane oxidation have been determined. The activity and stability of the materials depends on their composition and on the reaction temperature. The introduction of calcium into lanthanum ferrite up to x = 0.5 causes a nonmonotonic increase in the activity of the catalyst in methane oxidation. As x is further increased, the catalytic activity falls off. It has been analyzed how the activity of the catalysts is affected by variations of their imperfection and microstructure as a result of the introduction of calcium and under the action of the reaction medium. According to highresolution transmission electron microscopy data, under the action of the reaction medium the perovskite structure undergoes partial degradation (in subsurface layers) leading to the formation of planar defects and to the release of iron oxide nanoparticles.
Cite:
Isupova L.A.
, Kulikovskaya N.A.
, Saputina N.
, Gerasimov E.Y.
, Tsybulya S.V.
La1 – xCaxFeO3 – δ (x = 0–1) Perovskites Prepared by the Pechini Method: Catalytic Activity in Deep Methane and CO Oxidation
Kinetics and Catalysis. 2015. V.56. N6. P.781-787. DOI: 10.1134/S0023158415050092 WOS Scopus РИНЦ AN OpenAlex
La1 – xCaxFeO3 – δ (x = 0–1) Perovskites Prepared by the Pechini Method: Catalytic Activity in Deep Methane and CO Oxidation
Kinetics and Catalysis. 2015. V.56. N6. P.781-787. DOI: 10.1134/S0023158415050092 WOS Scopus РИНЦ AN OpenAlex
Original:
Исупова Л.А.
, Куликовская Н.А.
, Сапутина Н.Ф.
, Герасимов Е.Ю.
, Цыбуля С.В.
Каталитическая активность перовскитов La1 – xCaxFeO3 – δ (х = 0–1), приготовленных методом Печини, в реакциях глубокого окисления метана и СО
Кинетика и катализ. 2015. Т.56. №6. С.770-776. DOI: 10.7868/S0453881115050093 РИНЦ OpenAlex
Каталитическая активность перовскитов La1 – xCaxFeO3 – δ (х = 0–1), приготовленных методом Печини, в реакциях глубокого окисления метана и СО
Кинетика и катализ. 2015. Т.56. №6. С.770-776. DOI: 10.7868/S0453881115050093 РИНЦ OpenAlex
Dates:
| Submitted: | Jan 22, 2015 |
| Published print: | Nov 1, 2015 |
| Published online: | Nov 24, 2015 |
Identifiers:
| Web of science: | WOS:000365450000010 |
| Scopus: | 2-s2.0-84948430829 |
| Elibrary: | 24975558 |
| Chemical Abstracts: | 2015:1918992 |
| OpenAlex: | W2204799517 |