由于碳载体存在的甲烷化问题，氧化物作为合成氨Ru催化剂的载体日益引起人们的重视。但氧化物为载体的强度不高，且负载Ru后的活性低于活性碳为载体的钌催化剂。如果能解决这些问题，则氧化物为载体的Ru基氨合成催化剂有望实现工业化。本文针对作为Ru催化剂载体的镁铝复合氧化物开展两方面的研究：第一，引入碱土金属离子改善其表面性质，从而提高其活性；第二，向镁铝复合氧化物中添加适量添加剂，提高其挤出成型产物的强度。详细考察了：（i）用两种不同方法制备碱土金属掺杂的镁铝复合氧化物，所得产物的结构、表面性质、以及负载Ru催化剂的活性差别；（ii）添加剂高岭土、Na2SiO3的加入量、添加方式对挤出成型产物强度和表...Novel alkaline earth metal doped mixed oxides were produced as the supports of Ru–based catalysts for ammonia synthesis by calcining hydrotalcite-like compounds prepared by two methods: co-precipitation and impregnation. Mixed oxides derived from hydrotalcite-like compounds synthesized by co-precipitation had better crystal structure and bigger surface area, thus showed better activities after loa...学位：工学硕士院系专业：化学化工学院化学工程与生物工程系_工业催化学号：20033301
