Investigation of the Microstructure Features of the Solid Solutions La1-xCaxCoO3-δ in Different Gas Environment - Conference attendances | Sciact - CRIS-system of Boreskov Institute of Catalysis

Investigation of the Microstructure Features of the Solid Solutions La1-xCaxCoO3-δ in Different Gas Environment Conference attendances

Language

Английский

Participant type

Стендовый

Conference

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань

Authors

Gerasimov Evgeny Yurievich ^1,2 , Vinokurov Zakhar ^1,2 , Kulikovskaya Nina Aleksandrovna ¹ , Isupova Lyubovʹ Aleksandrovna ¹ , Tsybulya Sergey Vasilʹevich ^1,2

Affiliations

1	Boreskov Institute of Catalysis SB RAS
2	Novosibirsk National Research University

HRTEM and XRD methods are used to study the microstructure of La1–xCaxCoO3-δ perovskite-like oxides synthesized by pyrolysis of polymerized complex precursor in different gas environment. The XRD data show that the samples studied are single-phase solid solutions for x≤0.5. In situ heating of samples up to 900°C in air does not lead to noticeable changes in the samples structure, which indicates their high thermal stability. Heating in vacuum up to 900°C leads to partial decomposition of the samples. After methane oxidation reaction the formation of planar defects and metal oxide nanoparticles on the surface of perovskite, which occurs under the reaction conditions was shown. Also formation of alternating perovskite – brownmillerite layers in reaction condition was shown by HRTEM data.

Gerasimov E.Y. , Vinokurov Z. , Kulikovskaya N.A. , Isupova L.A. , Tsybulya S.V.
Investigation of the Microstructure Features of the Solid Solutions La1-xCaxCoO3-δ in Different Gas Environment
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015