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
dc.contributor.author | Navarrete Rodríguez, Luisa Fernanda | |
dc.contributor.author | Atienza Martínez, María | |
dc.contributor.author | Reyero Zaragoza, Inés | |
dc.contributor.author | Urroz Unzueta, José Carlos | |
dc.contributor.author | Amorrortu Jiménez, Oihana | |
dc.contributor.author | Sanz Iturralde, Oihane ![]() | |
dc.contributor.author | Montes Ramírez, Mario ![]() | |
dc.contributor.author | Garcés, Siby I. | |
dc.contributor.author | Bimbela Serrano, Fernando | |
dc.contributor.author | Gandía Pascual, Luis María | |
dc.date.accessioned | 2024-02-06T17:26:04Z | |
dc.date.available | 2024-02-06T17:26:04Z | |
dc.date.issued | 2024-01-10 | |
dc.identifier.citation | Catalysts 14(1) : (2024) // Article ID 47 | es_ES |
dc.identifier.issn | 2073-4344 | |
dc.identifier.uri | http://hdl.handle.net/10810/64700 | |
dc.description.abstract | Two 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. | es_ES |
dc.description.sponsorship | This 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. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2021-127265OB-C21 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/TED2021-130846B-I00 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PLEC2022-009221 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/es/ | |
dc.subject | all-in-one method | es_ES |
dc.subject | Ni catalysts | es_ES |
dc.subject | Co catalysts | es_ES |
dc.subject | CO2 hydrogenation | es_ES |
dc.subject | Sabatier reaction | es_ES |
dc.title | 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 | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2024-01-26T14:11:02Z | |
dc.rights.holder | © 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 (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4344/14/1/47 | es_ES |
dc.identifier.doi | 10.3390/catal14010047 | |
dc.departamentoes | Química aplicada | |
dc.departamentoeu | Kimika aplikatua |
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Except where otherwise noted, this item's license is described as © 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 (https://creativecommons.org/licenses/by/ 4.0/).