The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions
The reaction mechanism of soot oxidation in tight contact conditions and that of oxygen mobility in the crystal lattices of Co3O4, Co3O4-CeO2 and CeO2 was studied. The TPIE results suggested that oxygen mobility is the highest in the crystal lattice of Co3O4-CeO2. The Isotopic Transient Kinetic Anal...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Catalysis Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1566736723000468 |
| _version_ | 1827963118721957888 |
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| author | Marek Rotko |
| author_facet | Marek Rotko |
| author_sort | Marek Rotko |
| collection | DOAJ |
| description | The reaction mechanism of soot oxidation in tight contact conditions and that of oxygen mobility in the crystal lattices of Co3O4, Co3O4-CeO2 and CeO2 was studied. The TPIE results suggested that oxygen mobility is the highest in the crystal lattice of Co3O4-CeO2. The Isotopic Transient Kinetic Analysis (ITKA) results suggested that soot oxidation proceeds mainly with the use of surface adsorbed oxygen on Co3O4, with lattice oxygen on CeO2 but without excluding the participation of small amounts of surface adsorbed oxygen, and in the case of Co3O4-CeO2 with the participation of both adsorbed surface and lattice oxygen. |
| first_indexed | 2024-04-09T16:54:29Z |
| format | Article |
| id | doaj.art-1dea9967f3474125ba56a8851d02e197 |
| institution | Directory Open Access Journal |
| issn | 1873-3905 |
| language | English |
| last_indexed | 2024-04-09T16:54:29Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Catalysis Communications |
| spelling | doaj.art-1dea9967f3474125ba56a8851d02e1972023-04-21T06:40:55ZengElsevierCatalysis Communications1873-39052023-04-01177106644The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditionsMarek Rotko0Corresponding author.; Maria Curie-Skłodowska University, Faculty of Chemistry, Institute of Chemical Sciences, Department of Chemical Technology, 3 Maria Curie-Skłodowska Square, 20-031 Lublin, PolandThe reaction mechanism of soot oxidation in tight contact conditions and that of oxygen mobility in the crystal lattices of Co3O4, Co3O4-CeO2 and CeO2 was studied. The TPIE results suggested that oxygen mobility is the highest in the crystal lattice of Co3O4-CeO2. The Isotopic Transient Kinetic Analysis (ITKA) results suggested that soot oxidation proceeds mainly with the use of surface adsorbed oxygen on Co3O4, with lattice oxygen on CeO2 but without excluding the participation of small amounts of surface adsorbed oxygen, and in the case of Co3O4-CeO2 with the participation of both adsorbed surface and lattice oxygen.http://www.sciencedirect.com/science/article/pii/S1566736723000468Diesel soot oxidationCeO2Co3O4Co3O4-CeO2TPIETransient isotopic kinetics of 16O/18O exchange |
| spellingShingle | Marek Rotko The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions Catalysis Communications Diesel soot oxidation CeO2 Co3O4 Co3O4-CeO2 TPIE Transient isotopic kinetics of 16O/18O exchange |
| title | The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions |
| title_full | The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions |
| title_fullStr | The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions |
| title_full_unstemmed | The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions |
| title_short | The use of 18O2 to investigate the soot oxidation process on Co3O4, Co3O4-CeO2 and CeO2 catalysts in tight contact conditions |
| title_sort | use of 18o2 to investigate the soot oxidation process on co3o4 co3o4 ceo2 and ceo2 catalysts in tight contact conditions |
| topic | Diesel soot oxidation CeO2 Co3O4 Co3O4-CeO2 TPIE Transient isotopic kinetics of 16O/18O exchange |
| url | http://www.sciencedirect.com/science/article/pii/S1566736723000468 |
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