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Propane dehydrogenation over Pt and Ga-containing MFI zeolites with modified acidity and textural properties

dc.contributor.authorOliveira, Adriana S.
dc.contributor.authorCueto, Jennifer
dc.contributor.authorAlonso-Doncel, María del Mar
dc.contributor.authorKubů, Martin
dc.contributor.authorČejka, Jiří
dc.contributor.authorSerrano, David P.
dc.contributor.authorGarcía-Muñoz, Rafael A.
dc.identifier.citationAdriana S. Oliveira, Jennifer Cueto, María del Mar Alonso-Doncel, Martin Kubů, Jiří Čejka, David P. Serrano, Rafael A. García-Muñoz, Propane dehydrogenation over Pt and Ga-containing MFI zeolites with modified acidity and textural properties, Catalysis Today, Volume 427, 2024, 114437, ISSN 0920-5861,
dc.descriptionAuthors gratefully acknowledge European Research Council Horizon 2020 research an innovation program TODENZE project (ERC-101021502). Adriana S. Oliveira thanks the Ministry of Universities; The Recovery, Transformation and Resilience Plan, and the Autonomous University of Madrid for a research grant (CA1/RSUE/2021–00836). MK and JC thank the Czech Science Foundation for funding this research through the ExPro project (19–27551X) and OP VVV “Excellent Research Teams”, project no. Z.02.1.01/0.0/0.0/15_003/0000417 − CUCAM from Ministerstvo Školství , Mládeže a Tělovýchovy. The work was also supported by ERDF/ESF project TECHSCALE (No. CZ.02.01.01/00/22_008/0004587) and Investigo Program (Nº Exp 09-PIN1-00006.5/2022) funded by European Union - Next Generation
dc.description.abstractA variety of oxides (titanium, tin, calcium, magnesium, and gallium) were supported over nano-crystalline ZSM-5 zeolite (n-ZSM-5) by wet impregnation, characterized and evaluated for propane dehydrogenation (PDH) reaction. To enhance the catalytic performance of the oxide-modified n-ZSM-5, Pt nanoparticles were also dispersed over the oxides-supported zeolite catalysts by wet impregnation. Finally, Ga-containing MFI zeolites were used as catalysts in the PDH. Ga was incorporated into the zeolite by two different methods, via hydrothermal synthesis and via wet impregnation. In the PDH reaction, Pt-containing samples exhibited a high initial catalytic activity although they suffered a fast deactivation by coke deposition. On the contrary, Ga-containing MFI catalysts showed a remarkable stability in the PDH reaction. In particular, the catalyst in which Ga was incorporated into the MFI structure by hydrothermal synthesis (Ga-MFI (nSH)) achieved the highest catalytic performance in PDH (9% conversion and 80% propylene selectivity) due to the synergy between the Brønsted and Lewis acid sites (BAS and LAS) and the optimal strength of its LAS sites. These results denote the great potential of Ga-MFI zeolites as catalysts in PDH
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subjectPropane dehydrogenationes
dc.subjectPt catalystes
dc.subjectGa-MFI catalystes
dc.titlePropane dehydrogenation over Pt and Ga-containing MFI zeolites with modified acidity and textural propertieses

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Attribution-NonCommercial-NoDerivatives 4.0 InternacionalExcept where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional