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Author | dc.contributor.author | Escobar, Mauricio | |
Author | dc.contributor.author | Gracia, Francisco | |
Author | dc.contributor.author | Karelovic, Alejandro | |
Author | dc.contributor.author | Jiménez, Romel | |
Admission date | dc.date.accessioned | 2018-12-20T15:13:21Z | |
Available date | dc.date.available | 2018-12-20T15:13:21Z | |
Publication date | dc.date.issued | 2015 | |
Cita de ítem | dc.identifier.citation | Catalysis Science and Technology, Volumen 5, Issue 9, 2018, Pages 4532-4541 | |
Identifier | dc.identifier.issn | 20444761 | |
Identifier | dc.identifier.issn | 20444753 | |
Identifier | dc.identifier.other | 10.1039/c5cy00676g | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/158596 | |
Abstract | dc.description.abstract | © The Royal Society of Chemistry 2015.Carbon monoxide hydrogenation was studied over a γ-alumina-supported 1 wt% Rh catalyst by means of kinetic and in situ infrared measurements. The study was carried out at 200-300 °C, 0-22.5 kPa H<inf>2</inf> and 1-7.5 kPa CO. The in situ FTIR scrutiny of the catalyst surface shows that adsorbed CO∗ species and vacancies dominate the Rh surface, while no effect of H<inf>2</inf> and H<inf>2</inf>O pressures on surface coverage was observed under the conditions studied. The kinetic data are consistent with the mechanism in which the C-O bond dissociation is assisted by a double H-addition while H<inf>2</inf> dissociative adsorption, CO molecular adsorption and the HCO∗ formation are quasi-equilibrated steps. A two-parameter Langmuir-Hinshelwood rate expression is deduced for CH<inf>4</inf> formation, in agreement with the proposed sequence of elementary steps and kinetic data. The effect of temperature on parameters α and K<inf>CO</inf> leads to an ap | |
Lenguage | dc.language.iso | en | |
Publisher | dc.publisher | Royal Society of Chemistry | |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
Source | dc.source | Catalysis Science and Technology | |
Keywords | dc.subject | Catalysis | |
Título | dc.title | Kinetic and in situ FTIR study of CO methanation on a Rh/Al | |
Document type | dc.type | Artículo de revista | |
Cataloguer | uchile.catalogador | SCOPUS | |
Indexation | uchile.index | Artículo de publicación SCOPUS | |
uchile.cosecha | uchile.cosecha | SI | |
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