【摘要】 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。更多还原

【Abstract】 The influences of preparation methods catalyst precursors and heat treatment of iron catalysts on the catalytic activity for the reaction with oxygen-containing gas were investigated by using dynamic TG-DTG. It was observed that iron salts with lower decomposition temperatures exhibit higher activity when dry mixing method was used for preparation. The results also show that heat treatment can significantly enhance the catalytic activity of iron salts containing oxyegn atoms and with high decomposition temperatures, but does not change the activity of iron salts with low decomposition temperatures or containing no oxygen atom.更多还原