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Taking advantage of sulfur impurities present in commercial carbon nanofibers to generate selective palladium catalysts

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dc.contributor.authorMorales, María V.
dc.contributor.authorGuerrero Ruiz, Antonio R
dc.contributor.authorCastillejos López, Eva
dc.contributor.authorAsedegbega Nieto, Esther
dc.contributor.authorRodríguez Ramos, Inmaculada
dc.contributor.orcidhttps://orcid.org/0000-0003-2834-0296
dc.contributor.orcidhttps://orcid.org/0000-0003-1848-5985
dc.contributor.orcidhttps://orcid.org/0000-0003-3881-0757
dc.contributor.orcidhttps://orcid.org/0000-0003-4622-6008
dc.date.accessioned2024-11-06T12:44:12Z
dc.date.available2024-11-06T12:44:12Z
dc.date.issued2020
dc.descriptionThe registered version of this article, first published in “Carbon, Volume 157, 2020", is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.carbon.2019.10.021 La versión registrada de este artículo, publicado por primera vez en “Carbon, Volume 157, 2020", está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.carbon.2019.10.021
dc.description.abstractAchieving high selectivity is one of the major challenges in heterogeneous catalysis, being carbon materials universally employed as catalysts support due to their so-called “inert” nature. However, due to the complexity of its intrinsic characteristics, there are still several factors to bear in mind when selecting the appropriate carbon support. In this work we demonstrate that the remaining sulfur impurities in one type of commercial carbon nanofibers (CNFs) drastically alter the catalytic properties of palladium by triggering electro-deficient active sites. Two as-received CNFs thermally processed at different severity degrees, namely PS and HHT, were used to support Pd nanoparticles through the wet impregnation technique using palladium nitrate as precursor. The proof of principle is demonstrated through two transformation reactions of biomass platform molecules: the hydrogenation of 5-hydroxymethylfurfural, performed in a batch-type reactor, and the ethanol dehydrogenation/decarbonylation reaction, carried out in a continuous flow fixed-bed reactor. In both reactions, Pd/PS was substantially more selective than its sulfur-free counterpart Pd/HHT, and one of the most selective in comparison with the state-of-the-art Pd catalysts. This finding makes available a simple, easy and green strategy to design carbon-supported Pd catalysts for selective hydrogenation and dehydrogenation reactions.en
dc.description.versionversión publicada
dc.identifier.citationM.V. Morales, A. Guerrero-Ruiz, E. Castillejos, E. Asedegbega-Nieto, I. Rodríguez-Ramos, Taking advantage of sulfur impurities present in commercial carbon nanofibers to generate selective palladium catalysts, Carbon, Volume 157, 2020, Pages 120-129, ISSN 0008-6223, https://doi.org/10.1016/j.carbon.2019.10.021
dc.identifier.doihttps://doi.org/10.1016/j.carbon.2019.10.021
dc.identifier.issn0008-6223
dc.identifier.urihttps://hdl.handle.net/20.500.14468/24272
dc.journal.titleCarbón
dc.journal.volume157
dc.language.isoen
dc.page.final129
dc.page.initial120
dc.publisherELSEVIER
dc.relation.centerFacultad de Ciencias
dc.relation.departmentQuímica Inorgánica y Química Técnica
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject23 Química::2303 Química inorgánica
dc.titleTaking advantage of sulfur impurities present in commercial carbon nanofibers to generate selective palladium catalystsen
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublicationdee0d46d-b5de-4894-b408-b28a7fefce5b
relation.isAuthorOfPublication.latestForDiscoverydee0d46d-b5de-4894-b408-b28a7fefce5b
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