Low‐Temperature CO Oxidation by the Pt/CeO2 Based Catalysts Review
| Journal |
ChemCatChem
ISSN: 1867-3880 , E-ISSN: 1867-3899 |
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| Output data | Year: 2024, Volume: 16, Number: 15, Article number : e202301727, Pages count : 26 DOI: 10.1002/cctc.202301727 | ||
| Tags | Pt/CeO2• low temperature CO oxidation • PtOx clusters • metallic clusters • single atoms | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0032 |
Abstract:
This review analyzes the literature data and the results of studies of the Pt/CeO2-based catalysts that are capable of providing the low-temperature CO oxidation (LTO CO). The review summarizes the catalytic characteristics and the main properties of Pt/CeO2-based catalysts necessary for the low-temperature oxidation at T < 50 oC. Analysis of the literature data on the use of physical methods of investigation and their correlation with the activity of Pt/CeO2 catalysts allowed us to conclude that the main active forms of platinum are small metallic clusters, single atoms Pt2+-SA and oxide clusters PtOx interacting with ceria nanoparticles. It has been established that the most active forms are PtOx clusters, which provide a high reaction rate in the temperature range from -50 to +50 °C. Forms of ionic Pt2+ with different coordination with oxygen ensure the activity of catalysts starting at temperatures above 100 °C. Finally, small metallic clusters occupy an intermediate position, providing activity above 0 °C, but their instability and gradual transition to the oxidized state Pt2+/PtOx are noted. At the conclusion of the review, the results of mathematical modeling demonstrate the correct kinetics description of the low-temperature CO oxidation based on the Mars-van Krevelen and associative mechanisms.
Cite:
Stadnichenko A.
, Slavinskaya E.
, Stonkus O.
, Boronin A.
Low‐Temperature CO Oxidation by the Pt/CeO2 Based Catalysts
ChemCatChem. 2024. V.16. N15. e202301727 :1-26. DOI: 10.1002/cctc.202301727 WOS Scopus РИНЦ AN OpenAlex
Low‐Temperature CO Oxidation by the Pt/CeO2 Based Catalysts
ChemCatChem. 2024. V.16. N15. e202301727 :1-26. DOI: 10.1002/cctc.202301727 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Dec 24, 2023 |
| Accepted: | Feb 16, 2024 |
| Published online: | Mar 4, 2024 |
| Published print: | Aug 12, 2024 |
Identifiers:
| Web of science: | WOS:001179321700001 |
| Scopus: | 2-s2.0-85186455216 |
| Elibrary: | 66255012 |
| Chemical Abstracts: | 2024:571923 |
| OpenAlex: | W4391879858 |