Ion-Exchange Resin-Supported Ru NPs Dispersed in Randomly Methylated α-Cyclodextrin Aqueous Solution: A Step Toward an Efficient and Recyclable Catalyst for the Hydrogenation of Fatty Acid Methyl Esters and Derivatives - Université d'Artois Accéder directement au contenu
Article Dans Une Revue ACS Sustainable Resource Management Année : 2024

Ion-Exchange Resin-Supported Ru NPs Dispersed in Randomly Methylated α-Cyclodextrin Aqueous Solution: A Step Toward an Efficient and Recyclable Catalyst for the Hydrogenation of Fatty Acid Methyl Esters and Derivatives

Résumé

Ruthenium nanoparticles (NPs) immobilized in a DOWEX type resin were evaluated as a supported metallic catalyst in the methyl undecenoate hydrogenation in aqueous biphasic conditions. A wide range of cyclodextrins was tested as a molecular shuttle for overcoming mass transfer limitations. The best catalytic activities were obtained in the presence of methylated cyclodextrins (CDs), especially with randomly methylated α-cyclodextrin (RaMe-α-CD). These enhanced activities were due to the formation of inclusion complexes between the cyclodextrin and the substrate combined with beneficial resin–CD interactions. The influence of several reaction parameters (cross-linkage ratio of the resin, volume of water, temperature, and hydrogen pressure) was studied to get the most efficient catalytic system. A detailed recycling of the water dispersed DOWEX-immobilized Ru NPs showed not only the efficiency of this catalyst via the hydrogenation of several fatty acid methyl esters (C11–C18) but also its robustness. Despite the migration of Ru NPs from the core to the surface of the resin bead through microscopic analyses, 20 runs were performed without notable activity loss.

Domaines

Catalyse

Dates et versions

hal-04426678 , version 1 (30-01-2024)

Identifiants

Citer

Antonio Madureira, Nicolas Kania, Bastien Léger, Michel Ferreira, Samahe Sadjadi, et al.. Ion-Exchange Resin-Supported Ru NPs Dispersed in Randomly Methylated α-Cyclodextrin Aqueous Solution: A Step Toward an Efficient and Recyclable Catalyst for the Hydrogenation of Fatty Acid Methyl Esters and Derivatives. ACS Sustainable Resource Management, 2024, 1 (1), pp.65-75. ⟨10.1021/acssusresmgt.3c00037⟩. ⟨hal-04426678⟩
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