Active, selective and stable NiO-CeO2 nanoparticles for CO2 methanation
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http://hdl.handle.net/10045/110791
Títol: | Active, selective and stable NiO-CeO2 nanoparticles for CO2 methanation |
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Autors: | Cárdenas-Arenas, Andrea | Soriano Cortés, Helena | Bailón-García, Esther | Davó-Quiñonero, Arantxa | Lozano-Castello, Dolores | Bueno López, Agustín |
Grups d'investigació o GITE: | Materiales Carbonosos y Medio Ambiente |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Paraules clau: | CO2 methanation | Nickel | Ceria | Nanoparticle | Catalyst | Methane |
Àrees de coneixement: | Química Inorgánica |
Data de publicació: | de febrer-2021 |
Editor: | Elsevier |
Citació bibliogràfica: | Fuel Processing Technology. 2021, 212: 106637. https://doi.org/10.1016/j.fuproc.2020.106637 |
Resum: | CO2 hydrogenation to CH4 (or methanation) has been proposed to diminish CO2 emissions producing a valuable fuel. A catalyst consisting of NiO-CeO2 mixed oxide 6–7 nm nanoparticles with enhanced properties has been prepared, and compared with other NiO-CeO2 reference catalysts including a mixed oxide with the same composition but without control of the size, a counterpart NiO-CeO2 mixed oxide with three dimensionally ordered macroporous (3DOM) structure and an inverse catalyst consisting of bulk NiO-supported CeO2 nanoparticles among others. At 275 °C the CO2 methanation rate is near 3 times higher to that achieved with the counterpart reference catalyst prepared without control of the size, being more active than all reference catalysts. The selectivity towards CH4 formation is ~100% in the whole range of temperature studied (until 500 °C), and kept the same activity and selectivity during a 25 h long-term test. The high activity of this catalyst is related with its high specific surface area (122 m2/g) and with the presence of highly-reducible Ni-O-Ce species on the nanoparticles surface. |
Patrocinadors: | Generalitat Valenciana (PROMETEO/2018/076, grant of ACA GRISOLIAP/2017/185 and contract of EBG APOSTD/2019/030); MINECO (CTQ2015-67597-C2-2-R); MICINN (PID2019-105960RBC22); EU (FEDER). |
URI: | http://hdl.handle.net/10045/110791 |
ISSN: | 0378-3820 (Print) | 1873-7188 (Online) |
DOI: | 10.1016/j.fuproc.2020.106637 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2020 Elsevier B.V. |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1016/j.fuproc.2020.106637 |
Apareix a la col·lecció: | INV - MCMA - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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Cardenas-Arenas_etal_2021_FuelProcessTech_final.pdf | Versión final (acceso restringido) | 2,26 MB | Adobe PDF | Obrir Sol·licitar una còpia |
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