Low-Temperature Decomposition of Nitrous Oxide in the Presence of 1%Cs/MgxCo3–xO4 ( x = 0–0.9) Oxides Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2020, Volume: 61, Number: 4, Pages: 646-653 Pages count : 8 DOI: 10.1134/S0023158420040072 | ||
| Tags | substituted cobalt spinel, nitrous oxide decomposition, loosely bound oxygen species | ||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0004 |
Abstract:
Mixed oxides 1%Cs/MgxCo3–xO4 (х = 0–0.9) with a spinel structure are synthesized by precipitation from nitrate solutions using (NH4)2CO3 as the precipitating agent and the subsequent modification of the dry precipitate with cesium by the Pechini method and calcining. The synthesized samples are studied by XRD, BET, SEM, TPR, and TPD methods. It is shown that an increase in the magnesium content leads to a significant decrease in the degree of crystallization of the oxides, an increase in the specific surface area, and the formation of loosely bound oxygen species, which contributes to an increase in the catalytic activity of the samples in nitrous oxide decomposition at temperatures of 150–400°С. The highest activity is exhibited by the 1%Cs/Mg0.1Co2.9O4 catalyst characterized by the presence of the maximum amount of loosely bound oxygen species. It is shown that the presence of oxygen or water in the reaction mixture leads to a decrease in the catalyst activity at 250°C by 10 or 80%, respectively; after that, the catalyst exhibits a stable on-stream behavior for at least 25 h. The catalyst activity is restored after a heat treatment.
Cite:
Ivanova Y.A.
, Sutormina E.F.
, Isupova L.A.
Low-Temperature Decomposition of Nitrous Oxide in the Presence of 1%Cs/MgxCo3–xO4 ( x = 0–0.9) Oxides
Kinetics and Catalysis. 2020. V.61. N4. P.646-653. DOI: 10.1134/S0023158420040072 WOS Scopus РИНЦ AN OpenAlex
Low-Temperature Decomposition of Nitrous Oxide in the Presence of 1%Cs/MgxCo3–xO4 ( x = 0–0.9) Oxides
Kinetics and Catalysis. 2020. V.61. N4. P.646-653. DOI: 10.1134/S0023158420040072 WOS Scopus РИНЦ AN OpenAlex
Original:
Иванова Ю.А.
, Сутормина Е.Ф.
, Исупова Л.А.
Низкотемпературное разложение N2O на оксидах 1% Cs/MgхCo3-хO4 (х = 0-0.9)
Кинетика и катализ. 2020. Т.61. №4. С.577-584. DOI: 10.31857/S0453881120040103RSCI РИНЦ OpenAlex
Низкотемпературное разложение N2O на оксидах 1% Cs/MgхCo3-хO4 (х = 0-0.9)
Кинетика и катализ. 2020. Т.61. №4. С.577-584. DOI: 10.31857/S0453881120040103RSCI РИНЦ OpenAlex
Dates:
| Submitted: | Feb 3, 2020 |
| Accepted: | Mar 18, 2020 |
| Published print: | Jul 1, 2020 |
| Published online: | Aug 3, 2020 |
Identifiers:
| Web of science: | WOS:000555487300016 |
| Scopus: | 2-s2.0-85088857387 |
| Elibrary: | 45419873 |
| Chemical Abstracts: | 2020:1511513 |
| OpenAlex: | W3047398079 |