The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion
The removal of soot particles via high-performance catalysts is a critical area of research due to the growing concern regarding air pollution. Among various potential catalysts suitable for soot oxidation, cerium oxide-based materials have shown considerable promise. In this study, CeO<sub>2&...
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MDPI AG
2025-01-01
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| author | Gabriela Grzybek Andrzej Wójtowicz Piotr Legutko Magdalena Greluk Grzegorz Słowik Andrzej Sienkiewicz Andrzej Adamski Andrzej Kotarba |
| author_facet | Gabriela Grzybek Andrzej Wójtowicz Piotr Legutko Magdalena Greluk Grzegorz Słowik Andrzej Sienkiewicz Andrzej Adamski Andrzej Kotarba |
| author_sort | Gabriela Grzybek |
| collection | DOAJ |
| description | The removal of soot particles via high-performance catalysts is a critical area of research due to the growing concern regarding air pollution. Among various potential catalysts suitable for soot oxidation, cerium oxide-based materials have shown considerable promise. In this study, CeO<sub>2</sub> samples obtained using a range of preparation methods (including hydrothermal synthesis (HT), sonochemical synthesis (SC), and hard template synthesis (TS)) were tested in soot combustion. They were compared to commercially available material (COM). All synthesized ceria catalysts were thoroughly characterized using XRD, RS, UV/Vis-DR, XPS, H<sub>2</sub>-TPR, SEM, and TEM techniques. As confirmed in the current study, every tested ceria sample can be used as an effective soot oxidation catalyst, with a temperature of 50% soot conversion not exceeding 400 °C in a tight contact mode. A strong correlation was observed between the catalysts’ Ce<sup>3+</sup> concentration and activity, with higher Ce<sup>3+</sup> levels leading to improved performance. These findings underscore the importance of synthesis in optimizing ceria-based catalysts for environmental applications. |
| format | Article |
| id | doaj-art-36ba3baa3c174814aa53e47d7d5907c3 |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-36ba3baa3c174814aa53e47d7d5907c32025-01-24T13:43:45ZengMDPI AGMolecules1420-30492025-01-0130235810.3390/molecules30020358The Role of Synthesis Methods of Ceria-Based Catalysts in Soot CombustionGabriela Grzybek0Andrzej Wójtowicz1Piotr Legutko2Magdalena Greluk3Grzegorz Słowik4Andrzej Sienkiewicz5Andrzej Adamski6Andrzej Kotarba7Faculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, PolandFaculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, PolandFaculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, PolandFaculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, PolandThe removal of soot particles via high-performance catalysts is a critical area of research due to the growing concern regarding air pollution. Among various potential catalysts suitable for soot oxidation, cerium oxide-based materials have shown considerable promise. In this study, CeO<sub>2</sub> samples obtained using a range of preparation methods (including hydrothermal synthesis (HT), sonochemical synthesis (SC), and hard template synthesis (TS)) were tested in soot combustion. They were compared to commercially available material (COM). All synthesized ceria catalysts were thoroughly characterized using XRD, RS, UV/Vis-DR, XPS, H<sub>2</sub>-TPR, SEM, and TEM techniques. As confirmed in the current study, every tested ceria sample can be used as an effective soot oxidation catalyst, with a temperature of 50% soot conversion not exceeding 400 °C in a tight contact mode. A strong correlation was observed between the catalysts’ Ce<sup>3+</sup> concentration and activity, with higher Ce<sup>3+</sup> levels leading to improved performance. These findings underscore the importance of synthesis in optimizing ceria-based catalysts for environmental applications.https://www.mdpi.com/1420-3049/30/2/358ceriacatalytic soot combustionUV/Vis-DR studiesband gapcrystallite size |
| spellingShingle | Gabriela Grzybek Andrzej Wójtowicz Piotr Legutko Magdalena Greluk Grzegorz Słowik Andrzej Sienkiewicz Andrzej Adamski Andrzej Kotarba The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion Molecules ceria catalytic soot combustion UV/Vis-DR studies band gap crystallite size |
| title | The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion |
| title_full | The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion |
| title_fullStr | The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion |
| title_full_unstemmed | The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion |
| title_short | The Role of Synthesis Methods of Ceria-Based Catalysts in Soot Combustion |
| title_sort | role of synthesis methods of ceria based catalysts in soot combustion |
| topic | ceria catalytic soot combustion UV/Vis-DR studies band gap crystallite size |
| url | https://www.mdpi.com/1420-3049/30/2/358 |
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