Application of Fumed-Silica Nanoparticles Supported Aqueous/Amphiphilic Phosphine-Rh Complexes for Higher Olefin Hydroformylation

摘要

The supported aqueous-phase catalysis (SAPC) integrates the advantages of the higher reactivity in the homogeneous catalysis system into the easy separation of catalyst and reaction products in the heterogeneous catalysis system, was applicable for hydroformylation, hydroxycarbonylation, oxidation and allylation reactions. However, the performance of SAPC in hydroformylation still remains important problem of the very high dependence of the conversion with the hydration rate of the support to be solved. Herein we report the characterization and performance of fumed-silica nanoparticles supported aqueous and amphiphlic phosphine-Rh complexes by means of BET, SEM, TEM, ~(31)P-NMR and TPD.