Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction

The dimethyl ether steam reforming reaction to generate hydrogen was tested over 1wt% Pd/Al2O3 catalysts prepared from different precursors. The conventional catalyst prepared by incipient wetness impregnation from palladium nitrate underwent strong deactivation under reforming conditions at 823K be...

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Authors: Ramos Guzmán, Erika Paola, Davin, Laia, Angurell Purroy, Inmaculada, Ledesma Rodriguez, Cristian, Llorca Piqué, Jordi|||0000-0002-7447-9582
Format: article
Publication Date:2015
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/79994
Online Access:https://hdl.handle.net/2117/79994
https://dx.doi.org/10.1002/cctc.201500202
Access Level:Open access
Keyword:Catalysis
Hydrogen as fuel
Nanoparticles
Dendrimers
Heterogeneous catalysis
Hydrogen
Palladium
Supported catalysts
Catàlisi
Hidrogen com a combustible
Nanopartícules
Àrees temàtiques de la UPC::Energies
Àrees temàtiques de la UPC::Enginyeria química::Química física
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spelling Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reactionRamos Guzmán, Erika PaolaDavin, LaiaAngurell Purroy, InmaculadaLedesma Rodriguez, CristianLlorca Piqué, Jordi|||0000-0002-7447-9582CatalysisHydrogen as fuelNanoparticlesDendrimersHeterogeneous catalysisHydrogenPalladiumSupported catalystsCatàlisiHidrogen com a combustibleNanopartículesÀrees temàtiques de la UPC::EnergiesÀrees temàtiques de la UPC::Enginyeria química::Química físicaThe dimethyl ether steam reforming reaction to generate hydrogen was tested over 1wt% Pd/Al2O3 catalysts prepared from different precursors. The conventional catalyst prepared by incipient wetness impregnation from palladium nitrate underwent strong deactivation under reforming conditions at 823K because of metal sintering and carbon deposition. The same occurred over the catalyst prepared from preformed Pd nanoparticles protected with dodecanethiol. In contrast, catalysts prepared from Pd nanoparticles protected with carbosilane dendrons showed enhanced stability and good performance for the production of hydrogen. This was because of the formation of SiO2 at the Pd-Al2O3 interface that acted as a pinning center and prevented Pd migration under the reaction conditions as well as the accumulation of carbon.20152015-07-0120152015-11-27journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/79994https://dx.doi.org/10.1002/cctc.201500202reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/799942026-05-27T15:37:01Z
dc.title.none.fl_str_mv Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
title Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
spellingShingle Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
Ramos Guzmán, Erika Paola
Catalysis
Hydrogen as fuel
Nanoparticles
Dendrimers
Heterogeneous catalysis
Hydrogen
Palladium
Supported catalysts
Catàlisi
Hidrogen com a combustible
Nanopartícules
Àrees temàtiques de la UPC::Energies
Àrees temàtiques de la UPC::Enginyeria química::Química física
title_short Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
title_full Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
title_fullStr Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
title_full_unstemmed Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
title_sort Improved stability of Pd/Al2O3 prepared from palladium nanoparticles protected with carbosilane dendrons in the dimethyl ether steam reforming reaction
dc.creator.none.fl_str_mv Ramos Guzmán, Erika Paola
Davin, Laia
Angurell Purroy, Inmaculada
Ledesma Rodriguez, Cristian
Llorca Piqué, Jordi|||0000-0002-7447-9582
author Ramos Guzmán, Erika Paola
author_facet Ramos Guzmán, Erika Paola
Davin, Laia
Angurell Purroy, Inmaculada
Ledesma Rodriguez, Cristian
Llorca Piqué, Jordi|||0000-0002-7447-9582
author_role author
author2 Davin, Laia
Angurell Purroy, Inmaculada
Ledesma Rodriguez, Cristian
Llorca Piqué, Jordi|||0000-0002-7447-9582
author2_role author
author
author
author
dc.subject.none.fl_str_mv Catalysis
Hydrogen as fuel
Nanoparticles
Dendrimers
Heterogeneous catalysis
Hydrogen
Palladium
Supported catalysts
Catàlisi
Hidrogen com a combustible
Nanopartícules
Àrees temàtiques de la UPC::Energies
Àrees temàtiques de la UPC::Enginyeria química::Química física
topic Catalysis
Hydrogen as fuel
Nanoparticles
Dendrimers
Heterogeneous catalysis
Hydrogen
Palladium
Supported catalysts
Catàlisi
Hidrogen com a combustible
Nanopartícules
Àrees temàtiques de la UPC::Energies
Àrees temàtiques de la UPC::Enginyeria química::Química física
description The dimethyl ether steam reforming reaction to generate hydrogen was tested over 1wt% Pd/Al2O3 catalysts prepared from different precursors. The conventional catalyst prepared by incipient wetness impregnation from palladium nitrate underwent strong deactivation under reforming conditions at 823K because of metal sintering and carbon deposition. The same occurred over the catalyst prepared from preformed Pd nanoparticles protected with dodecanethiol. In contrast, catalysts prepared from Pd nanoparticles protected with carbosilane dendrons showed enhanced stability and good performance for the production of hydrogen. This was because of the formation of SiO2 at the Pd-Al2O3 interface that acted as a pinning center and prevented Pd migration under the reaction conditions as well as the accumulation of carbon.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-07-01
2015
2015-11-27
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/79994
https://dx.doi.org/10.1002/cctc.201500202
url https://hdl.handle.net/2117/79994
https://dx.doi.org/10.1002/cctc.201500202
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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