Progress in Platinum Catalysts Supported by Inorganic Carriers for Hydrosilylation

Hydrosilylation catalyzed by transition metals or their complexes is one of the most important ways to synthesize organosilicones, and platinum catalysts are widely used. Inorganic carriers supported platinum catalysts not only can avoid the disadvantages of homogeneous catalysts, such as corroding reactor, pain platinum recovery and low reaction selectivity, but also can be available for sequential reactions due to the good mechanical strength and stability in reaction medium. A lot of literatures relating to platinum catalysts supported by inorganic carriers for hydrosilylation have been published. The platinum compounds have been supported by carbon carriers, silica, metallic oxide, molecular sieve or other inorganic carriers via direct load method or complexation between platinum and vinyl, phosphino, amino, arsino or mercapto functional group modified on the surface of the carriers. The research progresses in preparation, structure and properties of inorganic carriers supported platinum catalysts for hydrosilylation during recent 15 years are summarized with the description of their development trend.