采用动态TG-DTG,研究了铁催化剂的制备方法、前驱化合物的种类及热处理对其在碳-氧反应中催化活性的影响。观察到在干混法制备催化剂时,所用铁盐分解温度越低活性越高。此外还发现,热处理可明显提高由分解温度高的含氧铁盐制备的催化剂的活性,但对于不含氧铁盐和分解温度低的含氧铁盐无影响。 The preparation method of iron catalyst, the type of precursor compound and the effect of heat treatment on its catalytic activity in carbon-oxygen reaction were studied by dynamic TG-DTG. It is observed that the lower the iron salt decomposition temperature is, the higher the activity is when the catalyst is prepared by the dry mixing method. In addition, it has also been found that heat treatment can significantly increase the activity of a catalyst prepared from an oxygen-containing iron salt of high decomposition temperature, but has no effect on oxygen-free iron salts and oxygen-containing iron salts of low decomposition temperatures.