Toluene Abatement on Ag-CeO2/SBA-15 Catalysts: Synergistic Effect of Silver and Ceria Full article
| Journal |
Materials Today Chemistry
ISSN: 2468-5194 |
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| Output data | Year: 2021, Volume: 21, Article number : 100530, Pages count : 9 DOI: 10.1016/j.mtchem.2021.100530 | ||||||
| Tags | Silver catalysts; VOCs; Toluene oxidation; Ag-CeO2 interface; Toluene chemisorption | ||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Science Foundation | 18-73-10109 |
| 2 | Russian Foundation for Basic Research | 19-33-90189 (АААА-А19-119091090042-8) |
Abstract:
As a typical volatile organic compound, toluene is a hazardous material for human health and the environment, and currently, the development of catalysts for its oxidation into CO2 and water is crucial. The series of Ag-CeO2/SBA-15 catalysts is synthesized by wetness impregnation techniques and characterized by a number of physical-chemical methods (nitrogen [N2] physisorption, small angle X-ray scattering [SAXS], transmission electron microscopy [TEM], and temperature-programmed reduction [TPR]). The toluene sorption and catalytic properties in toluene oxidation are studied. Small silver [Ag] and cerium oxide [ceria, CeO2] particles with sizes below 3 nm are predominantly formed in the ordered structure of Santa Barbara Amorphous-15 [SBA-15]. The interactions between the Ag and CeO2 nanoparticles are established. Temperature-programmed desorption of toluene [TPD-C7H8] analysis shows that physical adsorption of toluene occurs on pristine SBA-15 material, while the introduction of either silver or ceria to SBA-15 leads to the appearance of additional strongly bound chemisorbed toluene on such sites. When both Ag and CeO2 are introduced, only chemisorbed toluene is formed over the Ag-CeO2/SBA-15 catalyst, and the highest catalytic activity in toluene oxidation is observed over this catalyst (T98% = 233 °C, 0.2% C6H5CH3) that is attributed to the synergistic effect of ceria [CeO2] and silver [Ag].
Cite:
Mikheeva N.N.
, Zaikovskii V.I.
, Larichev Y.V.
, Mamontov G.V.
Toluene Abatement on Ag-CeO2/SBA-15 Catalysts: Synergistic Effect of Silver and Ceria
Materials Today Chemistry. 2021. V.21. 100530 :1-9. DOI: 10.1016/j.mtchem.2021.100530 WOS Scopus РИНЦ AN OpenAlex
Toluene Abatement on Ag-CeO2/SBA-15 Catalysts: Synergistic Effect of Silver and Ceria
Materials Today Chemistry. 2021. V.21. 100530 :1-9. DOI: 10.1016/j.mtchem.2021.100530 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Apr 1, 2021 |
| Accepted: | Jun 30, 2021 |
| Published online: | Jul 29, 2021 |
| Published print: | Aug 1, 2021 |
Identifiers:
| Web of science: | WOS:000696937300009 |
| Scopus: | 2-s2.0-85111330144 |
| Elibrary: | 46948557 |
| Chemical Abstracts: | 2021:1856428 |
| OpenAlex: | W3190327358 |