Pt0 compounds bound in a silsesquioxane layer: active hydrosilation catalysts protected by the gel

Colloidal silica particles modified with a hydrosilane (SiH), triethoxysilane (TES), reacted with Karstedt's catalyst, Pt6 (1,1,3,3-tetramethyl-1,3-divinyldisiloxane)y, to give a supported platinum catalyst. The silica-supported platinum nanoparticles were catalytically active in the hydrosilation reaction; the catalytic activity was maintained after recovering and recycling the catalyst through at least three further hydrosilation …