Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO
This review covers recent advances in the synthesis of cerium dioxide, its properties, and potential applications. Cerium dioxide is known for its abilities to form surface vacancies, store and release oxygen, as well as to increase the thermal stability of the material by metal-Ce interactions, etc...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468217921000812 |
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| author | Thanh Son Cam Shamil Omarovich Omarov Maria Igorevna Chebanenko Svetlana Georgievna Izotova Vadim Igorevich Popkov |
| author_facet | Thanh Son Cam Shamil Omarovich Omarov Maria Igorevna Chebanenko Svetlana Georgievna Izotova Vadim Igorevich Popkov |
| author_sort | Thanh Son Cam |
| collection | DOAJ |
| description | This review covers recent advances in the synthesis of cerium dioxide, its properties, and potential applications. Cerium dioxide is known for its abilities to form surface vacancies, store and release oxygen, as well as to increase the thermal stability of the material by metal-Ce interactions, etc. The crystallite size, specific surface area, morphology, and dispersion of CeO2 nanoparticles can be significantly affected by the applied synthetic method, so it is necessary to assess its advantages and disadvantages. Therefore, different synthesis methods of CeO2 nanoparticles have been reviewed and assessed in the first part of the paper. In the second part of the review, we highlight our new and important findings in this field. In particular, advanced A2O/CuO/CeO2 (A = Li, Na, K, Rb, Cs) nanocatalysts have been prepared and tested towards the low-temperature CO oxidation. Each synthesized composite consists of nanosized CeO2 crystallites and amorphous incorporated oxides (CuO and A2O). The highest catalytic activity has been achieved for the 1Li2O/20CuO/80CeO2 sample with 20% CO conversion at 93 °C. Increasing the Li2O loading to 2 and 3 at.% did not enhance the catalytic activity due to the lower specific surface area of the obtained samples. It has been shown that CO adsorption is increased due to synergistic metal oxide-ceria interactions on the catalyst surface and, Li+ promotion stabilizing the Cu+ species. |
| first_indexed | 2024-12-24T01:08:08Z |
| format | Article |
| id | doaj.art-8fc9110374224bc1a99dc94f59c9fb8e |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-12-24T01:08:08Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-8fc9110374224bc1a99dc94f59c9fb8e2022-12-21T17:23:07ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792022-03-0171100399Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of COThanh Son Cam0Shamil Omarovich Omarov1Maria Igorevna Chebanenko2Svetlana Georgievna Izotova3Vadim Igorevich Popkov4Saint Petersburg State Institute of Technology, St. Petersburg, 190013, Russia; Corresponding author.Ioffe Institute, St. Petersburg, 194021, RussiaIoffe Institute, St. Petersburg, 194021, RussiaSaint Petersburg State Institute of Technology, St. Petersburg, 190013, RussiaIoffe Institute, St. Petersburg, 194021, RussiaThis review covers recent advances in the synthesis of cerium dioxide, its properties, and potential applications. Cerium dioxide is known for its abilities to form surface vacancies, store and release oxygen, as well as to increase the thermal stability of the material by metal-Ce interactions, etc. The crystallite size, specific surface area, morphology, and dispersion of CeO2 nanoparticles can be significantly affected by the applied synthetic method, so it is necessary to assess its advantages and disadvantages. Therefore, different synthesis methods of CeO2 nanoparticles have been reviewed and assessed in the first part of the paper. In the second part of the review, we highlight our new and important findings in this field. In particular, advanced A2O/CuO/CeO2 (A = Li, Na, K, Rb, Cs) nanocatalysts have been prepared and tested towards the low-temperature CO oxidation. Each synthesized composite consists of nanosized CeO2 crystallites and amorphous incorporated oxides (CuO and A2O). The highest catalytic activity has been achieved for the 1Li2O/20CuO/80CeO2 sample with 20% CO conversion at 93 °C. Increasing the Li2O loading to 2 and 3 at.% did not enhance the catalytic activity due to the lower specific surface area of the obtained samples. It has been shown that CO adsorption is increased due to synergistic metal oxide-ceria interactions on the catalyst surface and, Li+ promotion stabilizing the Cu+ species.http://www.sciencedirect.com/science/article/pii/S2468217921000812Cerium oxideCopper oxideAlkali metal oxide additivesNanocompositeSolution combustion synthesisCarbon monoxide |
| spellingShingle | Thanh Son Cam Shamil Omarovich Omarov Maria Igorevna Chebanenko Svetlana Georgievna Izotova Vadim Igorevich Popkov Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO Journal of Science: Advanced Materials and Devices Cerium oxide Copper oxide Alkali metal oxide additives Nanocomposite Solution combustion synthesis Carbon monoxide |
| title | Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO |
| title_full | Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO |
| title_fullStr | Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO |
| title_full_unstemmed | Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO |
| title_short | Recent progress in the synthesis of CeO2-based nanocatalysts towards efficient oxidation of CO |
| title_sort | recent progress in the synthesis of ceo2 based nanocatalysts towards efficient oxidation of co |
| topic | Cerium oxide Copper oxide Alkali metal oxide additives Nanocomposite Solution combustion synthesis Carbon monoxide |
| url | http://www.sciencedirect.com/science/article/pii/S2468217921000812 |
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