THE INFLUENCE OF THE CATALYTIC OXIDATION OF METHANE ON THE LA0.5CA0.5MN1-XFEXO3 PEROVSKITE STRUCTURE

1,2 Gerasimov Evgeny
Co-authors:
1,2 Nikolaeva Olga 1 Kulikovskaya Nina 1 Detsel Anna
Institutions:
1 Boreskov Institute of Catalysis of SB RAS, Russian Federation, gerasimov@catalysis.ru
2 Novosibirsk State University, Russian Federation.
Conference:
11th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 16th - 18th 2019
Proceedings:
Proceedings 11th International Conference on Nanomaterials - Research & Application
Pages:
150-156
ISBN:
978-80-87294-95-6
ISSN:
2694-930X
Published:
1st April 2020
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
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Abstract

Solid solutions La0.5Ca0.5Mn1-xFexO3 synthesized by the method of polymer-salt compositions at a temperature of 900° C with the perovskite structure were tested in the methane oxidation reaction. It was shown that at 600° C, complete conversion of methane occurs for all compositions, however, the nature of the dependence of the degree of conversion for lower temperatures is not linear and depends on the chemical composition. The formation of planar defects in the direction of crystallographic planes (101) in the perovskite structure at the stage of the synthesis of solid solutions and the appearance of nanoparticles of Ca-Mn oxides on the surface of perovskite after participation after reaction were shown by the HRTEM method.

Keywords: Perovskite, methane combustion, nanoparticles, planar defects, HRTEM
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