制备高碳醇Cu-Fe系催化剂的TPR研究

TPR Study on Cu-Fe Catalysts for Preparation of High Alcohols

利用ＴＰＲ研究了Ｃｕ－Ｆｅ系催化剂的还原行为和各组分间的相互作用．指出Ｃｕ－Ｆｅ系催化剂的活性与其还原行为密切相关．由共沉淀法制备的Ｃｕ－Ｆｅ系催化剂，各组分间的相互作用影响催化剂的活性．并用Ｃｏａｔｓ－Ｒｅｄｆｅｒｎ方法，求得了Ｃｕ－Ｆｅ系催化剂还原的动力学参数．

おeduction behavior and interaction of the components for Cu-Fe catalysts have been studied by TPR. It was found that the lower are the reduction temperatures of CuO and γFe_2O_3 in the catalysts, the higher are the activities of the catalysts. This shows that activities of the catalysts are closely related to their reduction behavior. Actually, the reduction process is just the activation process. It was found also that there exists interaction of the components in the coprecipitation samples and the activity is related to the interaction. The kinetic parameters of reduction for the catalysts were obtained by CoatsRedfern method also.