Process for obtaining hybrid catalysts complex compounds of transition metal nanoparticles encapsulated in porous silica, titania or zirconia.

摘要

Process for obtaining hybrid catalysts complex compounds of transition metal nanoparticles encapsulated in porous silica, titania or zirconia.; The present invention describes a chemically stable hybrid catalyst system comprising silica nanoparticles, titania or zirconia unfunctionalized and an organometallic complex of a transition metal. In the new materials described the catalytic species are encapsulated in the polymer matrix by direct interaction with it, without adding liniers or functional groups. a method of preparation is also described in a single step by the sol-gel by hydrolysis and condensation of alkoxides of Si, Ti or Zr in a medium, to which is added the organometallic complexes of transition metals while the hydrolysis / condensation of alkoxide occurs. These catalyst systems are used in the synthesis of organic compounds, chemical and pharmaceutical industry.