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Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/8BC647E9-0142-4C0A-B9EC-306688494E6B | - |
| Identifier | https://doi.org/10.3390/app10217605 | - |
| Identifier | https://www.mdpi.com/2076-3417/10/21/7605/htm | - |
| Language | en | - |
| Extent | 12 pages | en |
| Extent | 3,85 megabytes | en |
| Title | Hydrothermal synthesis of ZnO-doped ceria nanorods: effect of ZnO content on the redox properties and the CO oxidation performance | en |
| Creator | Stefa Sofia | en |
| Creator | Στεφα Σοφια | el |
| Creator | Lykaki Maria | en |
| Creator | Λυκακη Μαρια | el |
| Creator | Binas Vassilios | en |
| Creator | Pandis Pavlos | en |
| Creator | Stathopoulos Vassilis | en |
| Creator | Konsolakis Michail | en |
| Creator | Κονσολακης Μιχαηλ | el |
| Publisher | MDPI | en |
| Description | This research has been co-financed by the European Union and Greek national funds through the Operational Program Competitiveness, Entrepreneurship and Innovation, under the calls RESEARCH—CREATE—INNOVATE (project code: T1EDK-00094) | en |
| Content Summary | The rational design of highly efficient, noble metal-free metal oxides is one of the main research priorities in the area of catalysis. To this end, the fine tuning of ceria-based mixed oxides by means of aliovalent metal doping has currently received particular attention due to the peculiar metal-ceria synergistic interactions. Herein, we report on the synthesis, characterization and catalytic evaluation of ZnO–doped ceria nanorods (NR). In particular, a series of bare CeO2 and ZnO oxides along with CeO2/ZnO mixed oxides of different Zn/Ce atomic ratios (0.2, 0.4, 0.6) were prepared by the hydrothermal method. All prepared samples were characterized by X-ray diffraction (XRD), N2 physisorption, temperature-programmed reduction (TPR), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) and transmission electron microscopy (TEM). The CO oxidation reaction was employed as a probe reaction to gain insight into structure-property relationships. The results clearly showed the superiority of mixed oxides as compared to bare ones, which could be ascribed to a synergistic ZnO–CeO2 interaction towards an improved reducibility and oxygen mobility. A close correlation between the catalytic activity and oxygen storage capacity (OSC) was disclosed. Comparison with relevant literature studies verifies the role of OSC as a key activity descriptor for reactions following a redox-type mechanism. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2021-04-22 | - |
| Date of Publication | 2020 | - |
| Subject | CeO2/ZnO mixed oxides | en |
| Subject | Zinc oxide | en |
| Subject | Ceria nanorods | en |
| Subject | Oxygen storage capacity | en |
| Subject | CO oxidation | en |
| Bibliographic Citation | S. Stefa, M. Lykaki, V. Binas, P. K. Pandis, V. N. Stathopoulos, and M. Konsolakis, “Hydrothermal synthesis of ZnO-doped ceria nanorods: effect of ZnO content on the redox properties and the CO oxidation performance,” Appl. Sci., vol. 10, no. 21, Nov. 2020. doi: 10.3390/app10217605 | en |
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