合成甲酸甲酯Cu—Mn催化剂的活性组分及活性中心研究

研究了不同铜锰比，不同分解气氛以及催化剂中不同组分的相对活性，并对不同预处理方法所得催化剂的活性进行比较研究，结果表明，铜锰催化剂的活性源于氧化铜，氧化锰及锰酸铜之间的紧密结合，其中锰酸铜物相的存在对反应起着十分重要的作用，采用XPS－Auger,XRD及FT－IR对催化剂进行了表征，发现铜锰催化剂中Cu 为催化剂活性中心的可能性较大，与锰的化合物相互作用催化该合成反应的进行。

Study on the Active Component and Center of Cu-Mn Catalyst for the Synthesis of Methyl Formate

The activities of Cu Mn catalyst have been investigated, which included various Cu/Mn ratio, various components in the catalyst, various calcination temperature and various pretreated methods. The results suggest that the activity of Cu Mn catalyst comes from the combination of CuO, manganese oxide and copper manganate, especially copper manganate acts main role on the catalytic reaction. And the catalysts are characterized with XPS Auger, XRD and FT IR technologies. It indicates that the active center of catalysts is grealy possibly Cu + , not Cu 0, and it is not sure if Cu 2+ is also the active center.