Author, as appears in the article.: Urbina C, Campos C, Pecchi G, Claver C, Reyes P
Department: Química Física i Inorgànica
URV's Author/s: Claver Cabrero, Maria del Carmen Orosia
Keywords: Mesostructured zro 2 Enantioselective hydrogenation Colloidal platinum Chiral modifier
Abstract: The enantioselective hydrogenation of 1-phenyl-1,2-propanedione over Pt colloids stabilized with (R,S)-4,5-dihydro-4,5-diphenyl-2-(6-cyanopyridinyl)imidazoline (CI) supported on a meso-structured ZrO2 under a pressure of 40 bar of H-2 at 298 K has been investigated. The metal loading in all catalysts was 1 wt%. The effect of the amount of chiral modifier on the metal particle size and on the catalytic behavior was analyzed. It was found that as the CI/Pt molar ratio increases from 2.5 to 3.5 the Pt crystal size decreases from 3.0 to 1.8 nm. All catalysts were very active in the studied reaction, with the most active one being the catalyst with smaller Pt particles, whereas the selectivity is higher in those catalysts with larger chiral modified Pt metal particles.
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licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1420-3049
Author's mail: carmen.claver@urv.cat
Author identifier: 0000-0002-2518-7401
Record's date: 2023-02-18
Papper version: info:eu-repo/semantics/publishedVersion
Papper original source: Molecules. 15 (5): 3428-40
APA: Urbina C, Campos C, Pecchi G, Claver C, Reyes P (2010). Chiral Pt/ZrO2 catalysts. Enantioselective hydrogenation of 1-phenyl-1,2-propanedione. Molecules, 15(5), 3428-40. DOI: 10.3390/molecules15053428
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2010
Publication Type: Journal Publications
Repositori URV