dc.creatorAguirre, Alejo
dc.creatorCollins, Sebastián Enrique
dc.date.accessioned2021-07-20T14:18:54Z
dc.date.accessioned2022-10-15T08:59:25Z
dc.date.available2021-07-20T14:18:54Z
dc.date.available2022-10-15T08:59:25Z
dc.date.created2021-07-20T14:18:54Z
dc.date.issued2019
dc.identifierDRIFT+MS Quantitative Study of the CO Oxidation on Gold supported on Ceria; VI San Luis School and Conference on Surfaces, Interfaces and Catalysis; Santa Fe; Argentina; 2018; 1-2
dc.identifierhttp://hdl.handle.net/11336/136500
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4367851
dc.description.abstractThe steps of the CO oxidation reaction on a Au/CeO2 catalyst was quantitatively investigated using a novel DRIFT cell/micro-reactor. The design and characterization of this DRIFT cell/micro-reactor, coupled with mass spectrometry, to perform operando and transient studies of reactions at the gas/solid interface is presented. The cell was modeled and experimentally validated to obtain kinetic parameters of reactions under true chemical control conditions. Light-off curves of activity vs temperature, step-reaction and excitation modulation spectroscopy (MES) experiments were carried out. TOF and apparent activation energy were identical to the measured using a conventional reactor. The simultaneous detection of gas phase concentrations by MS and the intensity of the IR signals allowed the quantification of surface species active in the reaction: i) Au0-CO (2110 cm-1), Au+-CO (2125 cm-1), ii) carbonate adsorbed on the ceria support (1700-1200 cm-1). Moreover, the amount of adsorbed oxygen could also be quantified. Kinetic constants of CO adsorption and oxidation were measured.
dc.languageeng
dc.publisherVI San Luis School and Conference on Surfaces, Interfaces and Catalysis
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://servicios.intec.santafe-conicet.gov.ar/eventos/sanluisvi/vi-san-luis-conference/
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceBook of Abstract of the VI San Luis School and Conference on Surfaces, Interfaces and Catalysis
dc.subjectHeterogeneous catalysis
dc.subjectOperando Spectroscopies
dc.subjectGold
dc.subjectDRIFT
dc.titleDRIFT+MS Quantitative Study of the CO Oxidation on Gold supported on Ceria
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeinfo:eu-repo/semantics/conferenceObject
dc.typeinfo:ar-repo/semantics/documento de conferencia


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