Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process

Perovskite-like solid solution La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) was tested during the total methane combustion reaction. During the reaction, there is a noticeable decrease in methane conversion, the rate of catalyst deactivation increasing with an increase in temperature. The in situ XRD and HRTEM...

Descripción completa

Detalles Bibliográficos
Autores principales: Nikolaeva, Olga, Kapishnikov, Aleksandr, Gerasimov, Evgeny
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8468899/
https://www.ncbi.nlm.nih.gov/pubmed/34578599
http://dx.doi.org/10.3390/nano11092283
_version_ 1784573791098109952
author Nikolaeva, Olga
Kapishnikov, Aleksandr
Gerasimov, Evgeny
author_facet Nikolaeva, Olga
Kapishnikov, Aleksandr
Gerasimov, Evgeny
author_sort Nikolaeva, Olga
collection PubMed
description Perovskite-like solid solution La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) was tested during the total methane combustion reaction. During the reaction, there is a noticeable decrease in methane conversion, the rate of catalyst deactivation increasing with an increase in temperature. The in situ XRD and HRTEM methods show that the observed deactivation occurs as a result of the segregation of calcite and cobalt oxide particles on the perovskite surface. According to the TGA, the observed drop in catalytic activity is also associated with a large loss of oxygen from the perovskite structure.
format Online
Article
Text
id pubmed-8468899
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-84688992021-09-27 Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process Nikolaeva, Olga Kapishnikov, Aleksandr Gerasimov, Evgeny Nanomaterials (Basel) Communication Perovskite-like solid solution La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) was tested during the total methane combustion reaction. During the reaction, there is a noticeable decrease in methane conversion, the rate of catalyst deactivation increasing with an increase in temperature. The in situ XRD and HRTEM methods show that the observed deactivation occurs as a result of the segregation of calcite and cobalt oxide particles on the perovskite surface. According to the TGA, the observed drop in catalytic activity is also associated with a large loss of oxygen from the perovskite structure. MDPI 2021-09-02 /pmc/articles/PMC8468899/ /pubmed/34578599 http://dx.doi.org/10.3390/nano11092283 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Nikolaeva, Olga
Kapishnikov, Aleksandr
Gerasimov, Evgeny
Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process
title Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process
title_full Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process
title_fullStr Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process
title_full_unstemmed Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process
title_short Structural Insight into La(0.5)Ca(0.5)Mn(0.5)Co(0.5)O(3) Decomposition in the Methane Combustion Process
title_sort structural insight into la(0.5)ca(0.5)mn(0.5)co(0.5)o(3) decomposition in the methane combustion process
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8468899/
https://www.ncbi.nlm.nih.gov/pubmed/34578599
http://dx.doi.org/10.3390/nano11092283
work_keys_str_mv AT nikolaevaolga structuralinsightintola05ca05mn05co05o3decompositioninthemethanecombustionprocess
AT kapishnikovaleksandr structuralinsightintola05ca05mn05co05o3decompositioninthemethanecombustionprocess
AT gerasimovevgeny structuralinsightintola05ca05mn05co05o3decompositioninthemethanecombustionprocess

Ejemplares similares