本工作是探索稀土金属氧化物的氨合成铁系傒化剂的催化活性。稀土氧化物和氧化钾促进的催化剂比氧化铝和氧化钾二促进催化剂的氨合成活性高。这种行为不仅在常压而且在高压下都已经观察到。氨合成反应的催化活性随稀土金属原子序数而改变。可以预期,稀土金属氧化物作为氨合成铁系催化剂的一种促进剂,在工业上是很有潜力的。 This work is to explore the catalytic activity of the ammonia-synthesizing iron series catalysts of rare earth metal oxides. Rare earth oxide and potassium oxide promoted catalysts have higher ammonia synthesis activity than alumina and potassium oxide di-promoted catalysts. This behavior has been observed not only under atmospheric pressure but also under high pressure. The catalytic activity of ammonia synthesis changes with the atomic number of rare earth metals. It is expected that rare earth metal oxides, as an accelerator of ammonia-based iron-based catalysts, have great potential in the industry.