| Autor: |
Nikolaeva O; Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia., Kapishnikov A; Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia., Gerasimov E; Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia. |
| Jazyk: |
angličtina |
| Zdroj: |
Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2021 Sep 02; Vol. 11 (9). Date of Electronic Publication: 2021 Sep 02. |
| DOI: |
10.3390/nano11092283 |
| Abstrakt: |
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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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