Effect of SO2 on the soot oxidation activity of flame spray pyrolysis-made manganese oxide catalyst in gasoline model exhaust
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Campo DC | Valor | Idioma |
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dc.contributor | Materiales Carbonosos y Medio Ambiente | es_ES |
dc.contributor.author | Werther, Markus | - |
dc.contributor.author | Singer, Christian | - |
dc.contributor.author | Gross, Alexander | - |
dc.contributor.author | Kureti, Sven | - |
dc.contributor.author | Martínez-Munuera, Juan Carlos | - |
dc.contributor.author | Garcia-Garcia, Avelina | - |
dc.contributor.other | Universidad de Alicante. Departamento de Química Inorgánica | es_ES |
dc.contributor.other | Universidad de Alicante. Instituto Universitario de Materiales | es_ES |
dc.date.accessioned | 2024-04-10T07:24:03Z | - |
dc.date.available | 2024-04-10T07:24:03Z | - |
dc.date.issued | 2024-04-06 | - |
dc.identifier.citation | Reaction Kinetics, Mechanisms and Catalysis. 2024, 137: 1455-1469. https://doi.org/10.1007/s11144-024-02618-w | es_ES |
dc.identifier.issn | 1878-5190 (Print) | - |
dc.identifier.issn | 1878-5204 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/142098 | - |
dc.description.abstract | This study deals with the effect of SO2 on the soot oxidation activity of flame spray pyrolysis-prepared manganese oxide in gasoline model exhaust. The catalyst was exposed to 15 and 30 ppm SO2 at 250 °C and was characterized by N2 physisorption, SO2-TPD, O2-TPD, DRIFTS, XPS and PXRD. It was shown that the SO2 adsorption results in the formation of surface sulfate, while the uptake increased from 26 to 45 μmol/g with growing sulfur content of the model exhaust. The sulfur adsorption reduces the mobility and availability of oxygen on the catalyst thus inhibiting the oxygen transport from gas phase over the catalyst to the contact points of the soot. Consequently, the soot oxidation activity, investigated with tight contact blends of catalyst and soot, decreases with inclining amount of sulfate. Finally, the sulfate species were mostly removed by thermal treatment at 705 °C, which additionally provoked catalyst sintering. As a result, the catalytic performance of the de-sulfated catalyst was slightly lower compared to the sulfated sample. | es_ES |
dc.description.sponsorship | Open Access funding enabled and organized by Projekt DEAL. | es_ES |
dc.language | eng | es_ES |
dc.publisher | Springer Nature | es_ES |
dc.rights | © The Author(s) 2024. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. | es_ES |
dc.subject | Mn2O3 catalyst | es_ES |
dc.subject | Soot oxidation | es_ES |
dc.subject | SO2 aging | es_ES |
dc.subject | Gasoline exhaust | es_ES |
dc.title | Effect of SO2 on the soot oxidation activity of flame spray pyrolysis-made manganese oxide catalyst in gasoline model exhaust | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.peerreviewed | si | es_ES |
dc.identifier.doi | 10.1007/s11144-024-02618-w | - |
dc.relation.publisherversion | https://doi.org/10.1007/s11144-024-02618-w | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
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Werther_etal_2024_ReacKinetMechCat.pdf | 3,15 MB | Adobe PDF | Abrir Vista previa | |
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