Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation

[EN] Heterogeneous catalysts based on Pt alloys are widely employed in propane dehydrogenation (PDH), yet challenges such as coking and poor nanoparticle stability hinder their broader industrial deployment. Strategies to enhance dispersion and tune the catalyst surface properties remain at the fore...

Descripción completa

Detalles Bibliográficos
Autores: Valls, Maria I., Ara, Jesús, Catalán-Martínez, David, Grand, Julien, Mayer, J, Somacescu, Simona, Curulla-Ferré, Daniel, Escolástico Rozalén, Sonia|||0000-0002-7097-2425, Remiro-Buenamañana, Sonia|||0000-0002-5393-5729, Serra Alfaro, José Manuel|||0000-0002-1515-1106
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/230273
Acceso en línea:https://riunet.upv.es/handle/10251/230273
Access Level:acceso abierto
Palabra clave:Acidity
Catalyst
Europium
Platinum
Propane dehydrogenation
Redox catalyst
id ES_666327e8a0ab3f702d6ecebdccce0dd5
oai_identifier_str oai:riunet.upv.es:10251/230273
network_acronym_str ES
network_name_str España
repository_id_str
spelling Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane DehydrogenationValls, Maria I.Ara, JesúsCatalán-Martínez, DavidGrand, JulienMayer, JSomacescu, SimonaCurulla-Ferré, DanielEscolástico Rozalén, Sonia|||0000-0002-7097-2425Remiro-Buenamañana, Sonia|||0000-0002-5393-5729Serra Alfaro, José Manuel|||0000-0002-1515-1106AcidityCatalystEuropiumPlatinumPropane dehydrogenationRedox catalyst[EN] Heterogeneous catalysts based on Pt alloys are widely employed in propane dehydrogenation (PDH), yet challenges such as coking and poor nanoparticle stability hinder their broader industrial deployment. Strategies to enhance dispersion and tune the catalyst surface properties remain at the forefront of catalyst design. Here, we demonstrate a new class of PtSn2-based catalysts promoted by rare-earth elements for efficient and stable PDH. Among the rare-earth screened, europium (Eu) delivers the most pronounced promotional effect, enabling the formation of similar to 1.3 nm PtSn2 nanoparticles with improved thermal stability. Through its redox flexibility (Eu3+/Eu2+), Eu modulates the electronic environment of Pt, tunes surface acidity, and suppresses coke accumulation by directing carbon species away from active sites and onto the support. This work shows that rare-earth elements can serve as multifunctional promoters in alloy catalysts, influencing both structural dispersion and catalytic surface chemistry. The optimized catalyst (0.5% Pt-3% Sn-2% Eu on gamma-Al2O3) achieves a 40.6% propylene yield at 575 degrees C and a low deactivation rate (0.047 h-1), under conditions relevant to industrial practice. Our findings offer a new strategy for designing high-performance diluted alloy catalysts through rare-earth promotion, applicable to other dehydrogenation and hydrocarbon upgrading reactions where coke suppression and acid-base balance are critical.This work has been performed as part of a Joint Research Agreement between Total Energies OneTech Belgium (ref. IPA-6416). Financial support by Generalitat Valenciana(CIACIF/2021/199 and CIPROM/2022/10) and by the Spanish Ministry of Science and Innovation (PID2022-139663OB-100, FPU20/06919, and CEX2021-001230-S grants funded by MCIN/AEI/10.13039/501100011033) is acknowledged.WileyInstituto Universitario Mixto de Tecnología QuímicaGeneralitat ValencianaMinisterio de UniversidadesAgencia Estatal de InvestigaciónRepositorio Institucional de la Universitat Politècnica de València Riunet20252025-10-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/230273reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2022-139663OB-I00 DESCARBONIZACION DE LA INDUSTRIA DE PROCESOS MEDIANTE LA CATALISIS INTENSIFICADA POR INTEGRACION DE TECNOLOGIAS FACILITADORAS ESENCIALESGeneralitat Valenciana https://doi.org/10.13039/501100003359 CIACIF%2F2021%2F199Generalitat Valenciana https://doi.org/10.13039/501100003359 CIPROM%2F2022%2F10Ministerio de Universidades MIU FPU20%2F06919 Beca FPUAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 CEX2021-001230-Sopen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2302732026-06-13T07:49:27Z
dc.title.none.fl_str_mv Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
title Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
spellingShingle Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
Valls, Maria I.
Acidity
Catalyst
Europium
Platinum
Propane dehydrogenation
Redox catalyst
title_short Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
title_full Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
title_fullStr Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
title_full_unstemmed Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
title_sort Redox-Acidity Interplay in Eu-Promoted PtSn2 Catalysts for Selective and Stable Propane Dehydrogenation
dc.creator.none.fl_str_mv Valls, Maria I.
Ara, Jesús
Catalán-Martínez, David
Grand, Julien
Mayer, J
Somacescu, Simona
Curulla-Ferré, Daniel
Escolástico Rozalén, Sonia|||0000-0002-7097-2425
Remiro-Buenamañana, Sonia|||0000-0002-5393-5729
Serra Alfaro, José Manuel|||0000-0002-1515-1106
author Valls, Maria I.
author_facet Valls, Maria I.
Ara, Jesús
Catalán-Martínez, David
Grand, Julien
Mayer, J
Somacescu, Simona
Curulla-Ferré, Daniel
Escolástico Rozalén, Sonia|||0000-0002-7097-2425
Remiro-Buenamañana, Sonia|||0000-0002-5393-5729
Serra Alfaro, José Manuel|||0000-0002-1515-1106
author_role author
author2 Ara, Jesús
Catalán-Martínez, David
Grand, Julien
Mayer, J
Somacescu, Simona
Curulla-Ferré, Daniel
Escolástico Rozalén, Sonia|||0000-0002-7097-2425
Remiro-Buenamañana, Sonia|||0000-0002-5393-5729
Serra Alfaro, José Manuel|||0000-0002-1515-1106
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Instituto Universitario Mixto de Tecnología Química
Generalitat Valenciana
Ministerio de Universidades
Agencia Estatal de Investigación
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Acidity
Catalyst
Europium
Platinum
Propane dehydrogenation
Redox catalyst
topic Acidity
Catalyst
Europium
Platinum
Propane dehydrogenation
Redox catalyst
description [EN] Heterogeneous catalysts based on Pt alloys are widely employed in propane dehydrogenation (PDH), yet challenges such as coking and poor nanoparticle stability hinder their broader industrial deployment. Strategies to enhance dispersion and tune the catalyst surface properties remain at the forefront of catalyst design. Here, we demonstrate a new class of PtSn2-based catalysts promoted by rare-earth elements for efficient and stable PDH. Among the rare-earth screened, europium (Eu) delivers the most pronounced promotional effect, enabling the formation of similar to 1.3 nm PtSn2 nanoparticles with improved thermal stability. Through its redox flexibility (Eu3+/Eu2+), Eu modulates the electronic environment of Pt, tunes surface acidity, and suppresses coke accumulation by directing carbon species away from active sites and onto the support. This work shows that rare-earth elements can serve as multifunctional promoters in alloy catalysts, influencing both structural dispersion and catalytic surface chemistry. The optimized catalyst (0.5% Pt-3% Sn-2% Eu on gamma-Al2O3) achieves a 40.6% propylene yield at 575 degrees C and a low deactivation rate (0.047 h-1), under conditions relevant to industrial practice. Our findings offer a new strategy for designing high-performance diluted alloy catalysts through rare-earth promotion, applicable to other dehydrogenation and hydrocarbon upgrading reactions where coke suppression and acid-base balance are critical.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-10-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/230273
url https://riunet.upv.es/handle/10251/230273
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2022-139663OB-I00 DESCARBONIZACION DE LA INDUSTRIA DE PROCESOS MEDIANTE LA CATALISIS INTENSIFICADA POR INTEGRACION DE TECNOLOGIAS FACILITADORAS ESENCIALES
Generalitat Valenciana https://doi.org/10.13039/501100003359 CIACIF%2F2021%2F199
Generalitat Valenciana https://doi.org/10.13039/501100003359 CIPROM%2F2022%2F10
Ministerio de Universidades MIU FPU20%2F06919 Beca FPU
Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 CEX2021-001230-S
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409812351025152
score 15,812429

Similares en LA Referencia