Repositori URV

Autor según el artículo: Urbina C, Campos C, Pecchi G, Claver C, Reyes P

Departamento: Química Física i Inorgànica

Autor/es de la URV: Claver Cabrero, Maria del Carmen Orosia

Palabras clave: Mesostructured zro 2 Enantioselective hydrogenation Colloidal platinum Chiral modifier

Resumen: 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.

Áreas temáticas: Zootecnia / recursos pesqueiros Saúde coletiva Química Psicología Planejamento urbano e regional / demografia Physical and theoretical chemistry Pharmaceutical science Organic chemistry Odontología Nutrição Molecular medicine Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Interdisciplinar Geografía General medicine Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Educação física Economia Drug discovery Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, organic Chemistry, multidisciplinary Chemistry (miscellaneous) Biotecnología Biodiversidade Biochemistry & molecular biology Astronomia / física Analytical chemistry

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 1420-3049

Direcció de correo del autor: carmen.claver@urv.cat

Identificador del autor: 0000-0002-2518-7401

Fecha de alta del registro: 2023-02-18

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/1420-3049/15/5/3428

Referencia al articulo segun fuente origial: Molecules. 15 (5): 3428-40

Referencia de l'ítem segons les normes 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

URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/

DOI del artículo: 10.3390/molecules15053428

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2010

Tipo de publicación: Journal Publications