Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine
Herein N2O decomposition over LaMO3 (M: Fe, Co, Ni) mixed oxides with perovskite structures has been optimized. The influence of the organic additive and the additive to (La3+ + Co2+) molar ratio on phase composition, particle aggregate size, textural properties, and catalytic activity of LaCoO3 has...
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KeAi Communications Co., Ltd.
2025-04-01
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| Series: | ChemPhysMater |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772571524000615 |
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| author | Petr Zemlianskii Daniil Morozov Gennady Kapustin Nikolai Davshan Konstantin Kalmykov Vladimir Chernyshev Alexander Kustov Leonid Kustov |
| author_facet | Petr Zemlianskii Daniil Morozov Gennady Kapustin Nikolai Davshan Konstantin Kalmykov Vladimir Chernyshev Alexander Kustov Leonid Kustov |
| author_sort | Petr Zemlianskii |
| collection | DOAJ |
| description | Herein N2O decomposition over LaMO3 (M: Fe, Co, Ni) mixed oxides with perovskite structures has been optimized. The influence of the organic additive and the additive to (La3+ + Co2+) molar ratio on phase composition, particle aggregate size, textural properties, and catalytic activity of LaCoO3 has been determined for the first time. Glycine improved the phase purity of LaCoO3, enhanced the specific surface area and pore volume, and shifted the pore size distribution to the wider mesopore and macropore regions. LaCoO3 showed better activity than LaFeO3 and LaNiO3 owing to the greater reducibility of Co3+ and its large specific surface area, and correlations between the La3+:Co2+ molar ratio, particle aggregate size, pore volume for pores larger than 25 nm, and N2O decomposition activity for LaCoO3 have been determined. Changes in the LaCoO3 textural properties following catalytic experiments with 10% water vapor added to the feed have also been analyzed here-in. |
| format | Article |
| id | doaj-art-2fbb3d7340254c59a48c7a4ee4d1e635 |
| institution | OA Journals |
| issn | 2772-5715 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | ChemPhysMater |
| spelling | doaj-art-2fbb3d7340254c59a48c7a4ee4d1e6352025-08-20T02:28:07ZengKeAi Communications Co., Ltd.ChemPhysMater2772-57152025-04-014216517810.1016/j.chphma.2024.12.002Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycinePetr Zemlianskii0Daniil Morozov1Gennady Kapustin2Nikolai Davshan3Konstantin Kalmykov4Vladimir Chernyshev5Alexander Kustov6Leonid Kustov7Zelinsky Institute of Organic Chemistry RAS, Pr. Leninsky, 47, Moscow 11991, RussiaNational University of Science and Technology MISIS, Pr. Leninsky, 4, Moscow 119049, RussiaZelinsky Institute of Organic Chemistry RAS, Pr. Leninsky, 47, Moscow 11991, RussiaZelinsky Institute of Organic Chemistry RAS, Pr. Leninsky, 47, Moscow 11991, RussiaChemistry Department, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119234, RussiaChemistry Department, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119234, RussiaZelinsky Institute of Organic Chemistry RAS, Pr. Leninsky, 47, Moscow 11991, Russia; Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow 119234, RussiaZelinsky Institute of Organic Chemistry RAS, Pr. Leninsky, 47, Moscow 11991, Russia; Corresponding author.Herein N2O decomposition over LaMO3 (M: Fe, Co, Ni) mixed oxides with perovskite structures has been optimized. The influence of the organic additive and the additive to (La3+ + Co2+) molar ratio on phase composition, particle aggregate size, textural properties, and catalytic activity of LaCoO3 has been determined for the first time. Glycine improved the phase purity of LaCoO3, enhanced the specific surface area and pore volume, and shifted the pore size distribution to the wider mesopore and macropore regions. LaCoO3 showed better activity than LaFeO3 and LaNiO3 owing to the greater reducibility of Co3+ and its large specific surface area, and correlations between the La3+:Co2+ molar ratio, particle aggregate size, pore volume for pores larger than 25 nm, and N2O decomposition activity for LaCoO3 have been determined. Changes in the LaCoO3 textural properties following catalytic experiments with 10% water vapor added to the feed have also been analyzed here-in.http://www.sciencedirect.com/science/article/pii/S2772571524000615N2O decompositionLaCoO3Bulk perovskitesGlycineTextural properties |
| spellingShingle | Petr Zemlianskii Daniil Morozov Gennady Kapustin Nikolai Davshan Konstantin Kalmykov Vladimir Chernyshev Alexander Kustov Leonid Kustov Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine ChemPhysMater N2O decomposition LaCoO3 Bulk perovskites Glycine Textural properties |
| title | Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine |
| title_full | Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine |
| title_fullStr | Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine |
| title_full_unstemmed | Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine |
| title_short | Correlations between synthetic conditions and catalytic activity of LaMO3 perovskite-like oxide materials (M: Fe, Co, Ni): The key role of glycine |
| title_sort | correlations between synthetic conditions and catalytic activity of lamo3 perovskite like oxide materials m fe co ni the key role of glycine |
| topic | N2O decomposition LaCoO3 Bulk perovskites Glycine Textural properties |
| url | http://www.sciencedirect.com/science/article/pii/S2772571524000615 |
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