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dc.contributor.authorCastells-Gil, Javier
dc.contributor.authorOuld-Chikh, Samy
dc.contributor.authorRamírez, Adrian
dc.contributor.authorAhmad, Rafia
dc.contributor.authorPrieto, Gonzalo
dc.contributor.authorGómez, Alberto Rodríguez
dc.contributor.authorGarzon Tovar, Luis Carlos
dc.contributor.authorTelalovic, Selvedin
dc.contributor.authorLiu, Lingmei
dc.contributor.authorGenovese, Alessandro
dc.contributor.authorPadial, Natalia M.
dc.contributor.authorAguilar-Tapia, Antonio
dc.contributor.authorBordet, Pierre
dc.contributor.authorCavallo, Luigi
dc.contributor.authorMartí-Gastaldo, Carlos
dc.contributor.authorGascon, Jorge
dc.date.accessioned2021-05-03T07:44:34Z
dc.date.available2021-05-03T07:44:34Z
dc.date.issued2021-04-26
dc.date.submitted2020-12-18
dc.identifier.citationCastells-Gil, J., Ould-Chikh, S., Ramírez, A., Ahmad, R., Prieto, G., Gómez, A. R., … Gascon, J. (2021). Unlocking mixed oxides with unprecedented stoichiometries from heterometallic metal-organic frameworks for the catalytic hydrogenation of CO2. Chem Catalysis. doi:10.1016/j.checat.2021.03.010
dc.identifier.issn2667-1093
dc.identifier.doi10.1016/j.checat.2021.03.010
dc.identifier.urihttp://hdl.handle.net/10754/669061
dc.description.abstractTheir complex surface chemistry and high oxygen lattice mobilities place mixed-metal oxides among the most important families of materials. Modulation of stoichiometry in mixed-metal oxides has been shown to be a very powerful tool for tuning optical and catalytic properties. However, accessing different stoichiometries is not always synthetically possible. Here, we show that the thermal decomposition of the recently reported metal-organic framework MUV-101(Fe, Ti) results in the formation of carbon-supported titanomaghemite nanoparticles with an unprecedented Fe/Ti ratio close to 2, not achievable by soft-chemistry routes. The resulting titanomaghemite phase displays outstanding catalytic activity for the production of CO from CO2 via the reverse water-gas shift (RWGS) reaction with CO selectivity values of ca. 100% and no signs of deactivation after several days on stream. Theoretical calculations suggest that the reaction proceeds through the formation of COOH* species, favoring in this way CO over other byproducts.
dc.description.sponsorshipDaliang Zhang is acknowledged for his help with Digital Micrograph scripts used to acquire image stacks during our in situ TEM experiments. This work was supported by the European Union (ERC Stg Chem-fs-MOF 714122) and the Spanish government (CTQ2017-83486-P and CEX2019-000919-M). N.M.P. thanks the European Union for a Marie Skłodowska-Curie Global Fellowship (H2020-MSCA-IF-2016-GF-749359-EnanSET).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S2667109321000178
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Chem Catalysis. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chem Catalysis, [, , (2021-04-26)] DOI: 10.1016/j.checat.2021.03.010 . © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleUnlocking mixed oxides with unprecedented stoichiometries from heterometallic metal-organic frameworks for the catalytic hydrogenation of CO2
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentKing Abdullah University of Science and Technology, KAUST Catalysis Center, Advanced Functional Materials, Thuwal 23955, Saudi Arabia.
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentChemical Science Program
dc.contributor.departmentChemical Engineering Program
dc.identifier.journalChem Catalysis
dc.rights.embargodate2023-04-26
dc.eprint.versionPost-print
dc.contributor.institutionInstituto de Ciencia Molecular, Universitat de València, Catedrático José Beltrán, 2, 46980 Paterna, Spain.
dc.contributor.institutionITQ Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, Valencia 46022, Spain.
dc.contributor.institutionInstitut Neel, UPR 2940 CNRS – Université Grenoble Alpes, 38000 Grenoble, France.
kaust.personOuld-Chikh, Samy
kaust.personRamírez, Adrian
kaust.personAhmad, Rafia
kaust.personGómez, Alberto Rodríguez
kaust.personGarzon Tovar, Luis Carlos
kaust.personTelalovic, Selvedin
kaust.personLiu, Lingmei
kaust.personGenovese, Alessandro
kaust.personCavallo, Luigi
kaust.personGascon, Jorge
dc.date.accepted2021-03-29
refterms.dateFOA2021-05-03T07:50:09Z


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