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Updated: Mar 7, 2026
Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis
Published on: December 16, 2013
Pt nanoparticles immobilized in mesostructured silica: a non-leaching catalyst for 1-octene hydrosilylation
Thomas Galeandro-Diamant1, Reine Sayah2, Marie-Line Zanota3
1Université de Lyon, Institut de Chimie de Lyon, Laboratoire de Génie des Procédés Catalytiques (UMR 5285 CNRS-Université Lyon 1-CPE Lyon), 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France. vme@lgpc.cpe.fr and Université de Lyon, Institut de Chimie de Lyon, Laboratoire de Chimie, Catalyse, Polymères et Procédés (UMR 5265 CNRS-Université Lyon 1-CPE Lyon), Équipe Chimie Organométallique de Surface, 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France. thieuleux@cpe.fr.
Abstract:
A catalyst containing small (ca. 2.5 nm) and crystalline Pt nanoparticles embedded into the walls of a mesostructured silica framework was found to be highly active in alkene hydrosilylation reaching TONs of ca. 105. More importantly, no Pt leaching was detected. This result is remarkable because Pt leaching is a recurrent problem in alkene hydrosilylation, which often prevents heterogeneous catalysts from being used industrially. This result is in contrast to the significant Pt leaching observed for other Pt/SiO2 catalysts.
