dc.creator | Aguirre, Alejo | |
dc.creator | Collins, Sebastián Enrique | |
dc.date.accessioned | 2021-07-20T14:18:54Z | |
dc.date.accessioned | 2022-10-15T08:59:25Z | |
dc.date.available | 2021-07-20T14:18:54Z | |
dc.date.available | 2022-10-15T08:59:25Z | |
dc.date.created | 2021-07-20T14:18:54Z | |
dc.date.issued | 2019 | |
dc.identifier | DRIFT+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.identifier | http://hdl.handle.net/11336/136500 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4367851 | |
dc.description.abstract | The 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.language | eng | |
dc.publisher | VI San Luis School and Conference on Surfaces, Interfaces and Catalysis | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://servicios.intec.santafe-conicet.gov.ar/eventos/sanluisvi/vi-san-luis-conference/ | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.source | Book of Abstract of the VI San Luis School and Conference on Surfaces, Interfaces and Catalysis | |
dc.subject | Heterogeneous catalysis | |
dc.subject | Operando Spectroscopies | |
dc.subject | Gold | |
dc.subject | DRIFT | |
dc.title | DRIFT+MS Quantitative Study of the CO Oxidation on Gold supported on Ceria | |
dc.type | info:eu-repo/semantics/publishedVersion | |
dc.type | info:eu-repo/semantics/conferenceObject | |
dc.type | info:ar-repo/semantics/documento de conferencia | |