dc.contributor.author | Boukha, Zouhair | |
dc.contributor.author | Bermejo López, Alejandro | |
dc.contributor.author | Pereda Ayo, Beñat | |
dc.contributor.author | González Marcos, José Antonio | |
dc.contributor.author | González Velasco, Juan Ramón | |
dc.date.accessioned | 2022-09-08T11:25:00Z | |
dc.date.available | 2022-09-08T11:25:00Z | |
dc.date.issued | 2022-10-05 | |
dc.identifier.citation | Applied Catalysis B-Environmental 314 : (2022) // Article ID 121500 | es_ES |
dc.identifier.issn | 0926-3373 | |
dc.identifier.issn | 1873-3883 | |
dc.identifier.uri | http://hdl.handle.net/10810/57659 | |
dc.description.abstract | [EN] The performance of nickel supported on lanthana-modified hydroxyapatite (HAP) catalysts is investigated in the CO2 methanation. The addition of La (1-6.6 wt%) leads to a surface enrichment following a sequential multilayer deposition model. Moreover, La addition systematically improves the dispersion of Ni particles and their reducibility, which in turn increases spectacularly the amounts of basic sites and their thermal stability. Such physicochemical changes impact positively on the activity of the catalysts in CO2 methanation. The estimated turnover frequency (TOF) suggest that the small Ni particles are the most efficient. The latter seem to provide a large density of very active defects on Ni-La2O3 interface. The optimized catalyst proves to be highly resistant to deactivation during 100 h time-on-stream (TOS). The samples were also assayed as dual function materials (DFMs) for CO2 adsorption and methanation. A scheme is proposed to describe the different steps involved in a CO2 adsorption/hydrogenation cycle. | es_ES |
dc.description.sponsorship | The financial support from the Science and Innovation Spanish Ministry (PID2019-105960RB-C21) and the Basque Government (IT1297-19) is acknowledged. The authors also acknowledge the technical support provided by SGIker (UPV/EHU Advanced Research Facilities/ERDF, EU) . | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2019-105960RB-C21 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | methanation | es_ES |
dc.subject | nickel catalyst | es_ES |
dc.subject | lanthana | es_ES |
dc.subject | hydroxyapatite | es_ES |
dc.subject | CO 2 adsorption | es_ES |
dc.subject | methanation cycles | es_ES |
dc.title | Study on the promotional effect of lanthana addition on the performance of hydroxyapatite-supported Ni catalysts for the CO2 methanation reaction | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0926337322004416?via%3Dihub | es_ES |
dc.identifier.doi | 10.1016/j.apcatb.2022.121500 | |
dc.departamentoes | Ingeniería química | es_ES |
dc.departamentoeu | Ingeniaritza kimikoa | es_ES |