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中文摘要：
因在科学研究中的基础地位和工业应用上的巨大价值，合成氨催化剂的研究一直是催化科学研究的一个重要领域。由于第一代铁基氨合成催化剂存在着能耗高和易中毒的缺点，1970年以来人们将注意力逐渐转向具有低温低压高活性且活性中心金属可回收等优点的钌基合成氨催化剂。
英文摘要：
The Mg,Al, Alkaline-earth mixed oxides were synthesized by co-precipitation of two mixed solutions and then loaded with Ru to get the Ru-based catalyst. X-ray diffraction, CO2-adsorption, N2 physical-adsorption and SEM were introduced to characterize the phase, baslcity, area, and configuration of the surface of the mixed oxide. The ammonia synthesis experiment was carded out under the fluxin of 3H2/1N2 ,with the velocity 2100 mL/h and pressure 0.2 MPa. The activity test shows that the catalyst supported on mixed oxide has far more better activity than those supported on single oxide. It can be concluded from the result of the characterization and activity test that the activity of the catalyst was mainly affected by the basicity of the surface rather than the surface areas.
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