Author/Authors :
Giovanni Vitulli، نويسنده , , Claudio Evangelisti، نويسنده , , Paolo Pertici، نويسنده , , Anna Maria Caporusso، نويسنده , , Nicoletta Panziera، نويسنده , , Piero Salvadori، نويسنده , , Maria Giulia Faga، نويسنده , , Chiara Manfredotti، نويسنده , , Gianmario Martra، نويسنده , , Salvatore Coluccia، نويسنده , , Antonella Balerna، نويسنده , , Stefano Colonna، نويسنده , , Settimio Mobilio، نويسنده ,
Abstract :
Rhodium nanoparticles supported on γ-Al2O3, derived from arene-solvated Rh atoms stabilized by trioctylamine (TOA), are valuable catalysts in hydrogenation and silylformylation reactions. They are largely more active than the analogous commercial catalyst, as well as of a sample similarly prepared in the absence of TOA. HRTEM measurements, IR studies on adsorbed CO species and extended X-ray absorption fine structure analyses evidenced the role of TOA in controlling the particle growth in the preparative process and in stabilizing the resulting Rh particles against erosion by CO and oxidation.
Keywords :
Trioctylamine , Metal Vapour Synthesis , Catalysis , Supported rhodium nanoparticles , Surface properties
