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过渡金属或其配合物催化的硅氢加成反应是合成有机硅化合物的重要途径之一,其中铂催化剂是应用最多的催化剂.无机载体负载型铂催化剂不仅可以避免均相催化剂腐蚀反应器、铂回收困难、反应产物选择性差的缺点,而且由于良好的机械强度及反应介质稳定性可以用于连续反应.大量文献报道了炭载体、二氧化硅、金属氧化物、分子筛等无机载体直接负载或利用载体表面修饰的乙烯基、膦基、氨基、胂基、巯基等功能基团的配位络合作用间接负载铂化合物制备用于硅氢加成反应的负载型铂催化剂.综述了近15年来这些催化剂的制备方法、结构特点、催化性能等方面的研究成果,并对其发展方向进行了分析和展望.
Hydrosilylation reaction of transition metal or its complex is one of the important ways to synthesize organosilicon compounds, of which platinum catalyst is the most used catalyst.Inorganic carrier supported platinum catalyst can not only avoid the homogeneous catalyst corrosion reactor, platinum Difficult to recycle, poor selectivity of the reaction products, but also can be used for continuous reaction because of good mechanical strength and stability of the reaction medium.A large number of literatures reported that carbon supports, silica, metal oxides, molecular sieves and other inorganic supports are directly loaded or utilized Coordination Complexes with Functional Groups Modified by Carriers of Carriers, such as Vinyl, Phosphono, Amino, Arsine, Mercapto, etc. Preparation of Supported Platinum Catalysts for Hydrosilylation Reaction by Indirect Loading of Platinum Compounds. Catalyst preparation, structural characteristics, catalytic performance and other aspects of the research results, and its development direction were analyzed and prospects.