以超微孔二氧化硅为载体,制备了负载的铂胶体催化剂,用液氮吸附-脱附,FT-IR,ICP,UV-solid等技术对催化剂进行了表征。在微波反应器中将催化剂用于催化苯乙炔与甲基氢二氯硅烷硅氢加成反应,结果显示该催化剂有很高的催化活性和重复实用性。无溶剂、100℃下反应0.5h,甲基氢二氯硅烷的平均转化率可达96.61%,区域选择性β-(E)加成产物大于99.50%。催化剂性能稳定,回收使用5次无明显失活。 The supported platinum colloidal catalyst was prepared by using microporous silica as carrier. The catalyst was characterized by liquid nitrogen adsorption-desorption, FT-IR, ICP, UV-solid and other techniques. The catalyst was used to catalyze the hydrosilylation of phenylacetylene with methylhydrogen dichlorosilane in the microwave reactor. The results showed that the catalyst has high catalytic activity and reproducibility. The average conversion rate of methylhydrogen dichlorosilane is up to 96.61% and the regioselective β - (E) addition product is more than 99.50% with no solvent at 100 ℃ for 0.5h. Catalyst performance is stable, no significant inactivation of the recovery of 5 times.