Active hydrogenation Rh nanocatalysts ...
Type de document :
Article dans une revue scientifique
DOI :
URL permanente :
Titre :
Active hydrogenation Rh nanocatalysts protected by new self-assembled supramolecular complexes of cyclodextrins and surfactants in water
Auteur(s) :
Thanh Chau, Nguyet Trang [Auteur]
Menuel, Stephane [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Colombel-Rouen, Sophie [Auteur]
Guerrero, Miguel [Auteur]
Monflier, Eric [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Philippot, Karine [Auteur]
Denicourt-Nowicki, Audrey [Auteur]
Roucoux, Alain [Auteur]
Menuel, Stephane [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Colombel-Rouen, Sophie [Auteur]
Guerrero, Miguel [Auteur]
Monflier, Eric [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Philippot, Karine [Auteur]
Denicourt-Nowicki, Audrey [Auteur]
Roucoux, Alain [Auteur]
Titre de la revue :
RSC Adv.
Numéro :
6
Pagination :
108125-108131
Date de publication :
2016-11-07
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
The stability of inclusion complexes between randomly methylated β-cyclodextrin (RaMeCD) or its leucine-grafted analogue (RaMeCDLeu) with two hydroxylated ammonium surfactants was investigated. The binding isotherms and ...
Lire la suite >The stability of inclusion complexes between randomly methylated β-cyclodextrin (RaMeCD) or its leucine-grafted analogue (RaMeCDLeu) with two hydroxylated ammonium surfactants was investigated. The binding isotherms and complexation constants were measured using the Isothermal Titration Calorimetry (ITC) technique. These host–guest inclusion complexes were used as protective agents during the formation of rhodium(0) nanoparticles by chemical reduction of rhodium trichloride in water. The amount of protective agent was adjusted in order to ensure both stability and reactivity of the rhodium nanocatalysts under the catalytic conditions. The size and dispersion of air-stable and water-soluble rhodium suspensions were determined by Transmission Electron Microscopy (TEM) analyses. These spherical nanoparticles, with sizes between 1.20 to 1.50 nm according to the nature of inclusion complexes, were evaluated in the biphasic hydrogenation of various reducible compounds (olefins, linear or aromatic ketones), showing promising results in terms of activity and selectivity.Lire moins >
Lire la suite >The stability of inclusion complexes between randomly methylated β-cyclodextrin (RaMeCD) or its leucine-grafted analogue (RaMeCDLeu) with two hydroxylated ammonium surfactants was investigated. The binding isotherms and complexation constants were measured using the Isothermal Titration Calorimetry (ITC) technique. These host–guest inclusion complexes were used as protective agents during the formation of rhodium(0) nanoparticles by chemical reduction of rhodium trichloride in water. The amount of protective agent was adjusted in order to ensure both stability and reactivity of the rhodium nanocatalysts under the catalytic conditions. The size and dispersion of air-stable and water-soluble rhodium suspensions were determined by Transmission Electron Microscopy (TEM) analyses. These spherical nanoparticles, with sizes between 1.20 to 1.50 nm according to the nature of inclusion complexes, were evaluated in the biphasic hydrogenation of various reducible compounds (olefins, linear or aromatic ketones), showing promising results in terms of activity and selectivity.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Catalyse et chimie supramoléculaire (CASU)
Date de dépôt :
2019-09-25T14:05:05Z