用化学沉积法制备了非晶态催化剂Ni-P-SiO_2,测定了该催化剂对苯乙烯加氢的活性,并与相应的晶态Ni-P-SiO_2及Ni-SiO_2的活性作对比.结果表明,还原态的Ni是反应的活性中心.用高真空TPD-MS研究了该催化剂对氢、一氧化碳的吸附,提出了一氧化碳加氢的反应机理. The amorphous catalyst Ni-P-SiO 2 was prepared by chemical deposition method, and the activity of the catalyst for the hydrogenation of styrene was measured and compared with that of the corresponding crystalline Ni-P-SiO 2 and Ni-SiO 2. , And Ni in the reduced state is the active center of the reaction.The adsorption of hydrogen and carbon monoxide by this catalyst was studied by high vacuum TPD-MS, and the reaction mechanism of hydrogenation of carbon monoxide was proposed.