Comparative study of supported Ni and Co catalysts prepared using the All-in-One method in the hydrogenation of CO2: effects of using (Poly)Vinyl Alcohol (PVA) as an additive

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dc.contributor.authorNavarrete Rodríguez, Luisa Fernanda
dc.contributor.authorAtienza Martínez, María
dc.contributor.authorReyero Zaragoza, Inés
dc.contributor.authorUrroz Unzueta, José Carlos
dc.contributor.authorAmorrortu, Oihana
dc.contributor.authorSanz Iturralde, Oihane
dc.contributor.authorMontes, Mario
dc.contributor.authorGarcés, Siby I.
dc.contributor.authorBimbela Serrano, Fernando
dc.contributor.authorGandía Pascual, Luis
dc.contributor.departmentInstitute for Advanced Materials and Mathematics - INAMAT2en
dc.contributor.departmentIngenieríaes_ES
dc.contributor.departmentIngeniaritzaeu
dc.date.accessioned2024-04-15T16:57:45Z
dc.date.available2024-04-15T16:57:45Z
dc.date.issued2024
dc.date.updated2024-04-15T16:57:10Z
dc.description.abstractTwo series of Ni and Co catalysts supported onto La-Al2O3 were prepared and the CO2 hydrogenation reactions investigated. The catalytic performance was evaluated in terms of the evolution with the reaction temperature of the CO2 conversion and product (CH4 and CO) yields, as well as specific activities (TOF) and apparent activation energies. CH4 was the favored product over both metals while the TOF for CH4 formation was about three times higher for Ni than Co at 240–265 °C. Metallic particle size effects were found, with the TOF for CH4 formation decreasing over both Ni and Co as the mean metallic size decreased. In contrast, the TOF for CO formation tended to increase at a decreasing particle size for the catalysts with the smallest Ni particle sizes. The apparent activation energies for Ni and Co were very similar and significantly decreased to values of 73–79 kJ/mol when the metallic dispersion increased. The catalysts were prepared using the all-in-one method, resulting in (poly)vinyl alcohol (PVA) being a key additive that allowed us to enhance the dispersion of Ni and Co to give very effective catalysts. This comparative study joins the few existing ones in the literature in which catalysts based on these metals operated under strictly the same reaction conditions.en
dc.description.sponsorshipThis research was funded by the Spanish Agencia Estatal de Investigación (AEI) and Ministerio de Ciencia e Innovación (MICINN), the European Union’s NextGenerationEU funds, the European Regional Development Fund (ERDF/FEDER) “Una manera de hacer Europa” and Plan de Recuperación, Transformación y Resiliencia, grant numbers PID2021-127265OB-C21, TED2021-130846B-I00 and PLEC2022-009221. This research was funded also by the University of the Basque Country, grant numbers COLLAB22/05 and GIU21/033.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationNavarrete, L. F., Atienza-Martínez, M., Reyero, I., Urroz, J. C., Amorrortu, O., Sanz, O., Montes, M., Garcés, S. I., Bimbela, F., Gandía, L. M. (2024) Comparative study of supported Ni and Co catalysts prepared using the All-in-One method in the hydrogenation of CO2: Effects of using (Poly)Vinyl Alcohol (PVA) as an additive. Catalysts, 14(1), 1-21. https://doi.org/10.3390/catal14010047.en
dc.identifier.doi10.3390/catal14010047
dc.identifier.issn2073-4344
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/47975
dc.language.isoengen
dc.publisherMDPIen
dc.relation.ispartofCatalysts 2024, 14(1), 47en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-127265OB-C21/ES/
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI//TED2021-130846B-I00/
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PLEC2022-009221/ES/
dc.relation.publisherversionhttps://doi.org/10.3390/catal14010047
dc.rights© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAll-in-one methoden
dc.subjectCo catalystsen
dc.subjectCO2 hydrogenationen
dc.subjectNi catalystsen
dc.subjectSabatier reactionen
dc.titleComparative study of supported Ni and Co catalysts prepared using the All-in-One method in the hydrogenation of CO2: effects of using (Poly)Vinyl Alcohol (PVA) as an additiveen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
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