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dc.contributor.authorMartín-Gómez, Juan
dc.contributor.authorEscamilla, Juan Carlos
dc.contributor.authorHidalgo-Carrillo, J.
dc.contributor.authorLópez Tenllado, Francisco Javier
dc.contributor.authorEstévez, R.
dc.contributor.authorHerrera-Beurnio, M. Carmen
dc.contributor.authorCastillo-Rodríguez, Miguel
dc.contributor.authorUrbano, Francisco José
dc.contributor.authorMarinas, Alberto
dc.date.accessioned2023-02-15T12:06:41Z
dc.date.available2023-02-15T12:06:41Z
dc.date.issued2022
dc.identifier.urihttp://hdl.handle.net/10396/24715
dc.descriptionEmbargado hasta 20/10/2024es_ES
dc.description.abstractTitanium (ca. 11 wt%) was dispersed on a carbonaceous mesoporous support and modified with copper (ca. 5 wt%) photodeposited using either glycerol or methanol as the sacrificial agent ((Cu-TiO2/MCH_(Gly) and Cu-TiO2/MCH_(Met) solids, respectively). In the former case, copper particles were more preferentially deposited on titania and copper nanoaggregates were more abundant than in the latter. The synthesized catalysts were tested in the glycerol photoreforming reaction and it was found that there was an increase in activity on copper photodeposition as compared to titania-mesoporous carbon composite, being higher in Cu-TiO2/MCH_(Gly) than in Cu-TiO2/MCH_(Met) (5 and 4 times, respectively). Nevertheless, copper present in Cu-TiO2/MCH_(Gly) redisperses as reaction proceeds, the catalyst exhibiting a more similar activity to Cu-TiO2/MCH_(Met) after one use. An additional reason for catalyst deactivation is strong adsorption of reaction intermediates. In this sense, competitive reactions with glycolic and glyceric acid (two of the intermediates identified by HPLC-DAD/RID) and glycerol gave some hints on reaction mechanism which could also be helpful for future identification of the species responsible for the catalysts deactivation.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/es_ES
dc.sourceCatalysis Today (2022)es_ES
dc.subjectCuO-TiO2-carbon compositees_ES
dc.subjectHydrogen photoproductiones_ES
dc.subjectSacrificial agentes_ES
dc.subjectDeactivation studieses_ES
dc.titleInfluence of sacrificial agent on Cu photodeposition over TiO2/MCH composites for photocatalytic hydrogen productiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.cattod.2022.10.010es_ES
dc.relation.projectIDGobierno de España. PID2019-104953RB-100/AEI/10.13039/501100011033
dc.relation.projectIDJunta de Andalucía. 1264113-R (UCO-FEDER)
dc.relation.projectIDJunta de Andalucía. P18-RT-4822
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccesses_ES
dc.date.embargoEndDateinfo:eu-repo/date/embargoEnd/2024-10-20


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