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dc.contributor.authorOnrubia Calvo, Jon Ander
dc.contributor.authorBermejo López, Alejandro
dc.contributor.authorPérez Vázquez, Sonia
dc.contributor.authorPereda Ayo, Beñat
dc.contributor.authorGonzález Marcos, José Antonio
dc.contributor.authorGonzález Velasco, Juan Ramón
dc.date.accessioned2022-09-20T17:45:37Z
dc.date.available2022-09-20T17:45:37Z
dc.date.issued2022-07-15
dc.identifier.citationFuel 320 : (2022) // Article ID 123842es_ES
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.urihttp://hdl.handle.net/10810/57799
dc.description.abstractThe valorisation of CO2 through its capture and in-situ hydrogenation to methane, using dual function materials (DFMs), emerges as promising alternative to reduce CO2 emissions to atmosphere and the global cost of current CO2 Capture and Utilization (CCU) technology. This work investigates the viability of LaNiO3-derived formulations as precursors of DFMs for CO2 capture and in-situ conversion to CH4. For this purpose, a set of DFMs obtained from 30% LaNiO3/CeO2, 30% LaNiO3/Al2O3, 30% LaNiO3/La-Al2O3 and LaNiO3 precursors were synthesized and systematically characterized before and after a controlled reduction process. Results of XRD analysis, STEM-EDX images, H-2-TPR and CO2-TPD experiments reveal that the DFM obtained after reduction of 30% LaNiO3/CeO2 formulation shows the smallest Ni-0 particle size (7 nm) and the highest medium-strong basic sites concentration. In fact, this DFM widens operation window with methane production ranging between 80 and 103 mu mol g(-1) and maintains a selectivity towards methane above 90% in the range of 280-520 degrees C. The best catalytic behaviour is related to a better contact between the different nature basic sites and the homogenously distributed Ni-0 sites, which favours a fast spill-over of dissociated H to near CO2 adsorption sites. The applicability of this formulation is further evidenced by a highly stable CH4 production during long-term experiments and a promoted Ni-0/NiO reversibility in the absence/presence of O-2 during the CO2 adsorption period, which allows a fast and complete recovery of CH4 production in absence of O-2. These aspects favour a versatile application of the 30% LaNiO3/CeO2-based DFM formulation to convert CO2 outlet streams from combustion flue gases of different nature.es_ES
dc.description.sponsorshipSupport for this study was provided by the Spanish Ministry of Science and Innovation (Project PID2019-105960RB-C21) and the Basque Government (Project IT1297-19). One of the authors (JAOC) acknowledges the Post-doctoral research grant (DOCREC20/49) provided by the University of the Basque Country (UPV/EHU).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationinfo:eu-repo/grantAgreement/MICINN/PID2019-105960RB-C21es_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectCO2 capture and hydrogenationes_ES
dc.subjectmethanationes_ES
dc.subjectdual function materiales_ES
dc.subjectLaNiO3 precursores_ES
dc.subjectperovskitees_ES
dc.titleApplicability of LaNiO3-derived catalysts as dual function materials for CO2 capture and in-situ conversion to methanees_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2022 The Author(s). Published by Elsevier Ltd. 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.holderAtribución-NoComercial-SinDerivadas 3.0 España*
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0016236122007013?via%3Dihubes_ES
dc.identifier.doi10.1016/j.fuel.2022.123842
dc.departamentoesIngeniería químicaes_ES
dc.departamentoeuIngeniaritza kimikoaes_ES


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© 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Except where otherwise noted, this item's license is described as © 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).