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用红外光谱和紫外-可见漫反射光谱研究了Mo-Ni-P/γ-Al_2O_3催化剂上钼、镍和磷的存在形式。证明了在γ—Al_2O_3上磷主要以磷酸铝的形式存在。磷的加入可以影响钼和镍的存在形式和分布,从而对催化剂的加氢脱氮活性有影响。
The existence forms of molybdenum, nickel and phosphorus on Mo-Ni-P / γ-Al 2 O 3 catalyst were studied by IR and UV-Vis diffuse reflectance spectroscopy. It is proved that phosphorus mainly exists in the form of aluminum phosphate on γ-Al 2 O 3. The addition of phosphorus can affect the form and distribution of molybdenum and nickel, and thus have an impact on the hydrodenitrogenation activity of the catalyst.