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用ＸＰＳ考察了制备温度，钝化气氛和氢还原活化温度对Ｍｏ２Ｎ催化剂表面的影响。在４００℃，氨可将ＭｏＯ３中的Ｍｏ还原到＋４价；继续升温到７００℃氨还原后，则Ｍｏ２＋成为主要组分。钝化样品的表面存在着来自氨的吸附氮和晶格氮两种不同的形式。而在表面钝化过程中引入的氧则在催化剂表面形成氧化薄层。经高温氢还原后，８０％以上的氧物种可被除去，结合ＴＤＳ、ＸＲＤ和热分析等其它研究结果，对Ｍｏ２Ｎ表面的钝化和活化过程进行了较深入的讨论。
The influence of preparation temperature, passivation atmosphere and hydrogen reduction activation temperature on the surface of Mo2N catalyst was investigated by XPS. At 400 ℃, ammonia can reduce Mo in MoO3 to +4 valence. After ammonia is further heated to 700 ℃, Mo2 + becomes the main component. There are two different forms of adsorbed nitrogen and lattice nitrogen from the surface of the passivated sample. Oxygen introduced during surface passivation forms a thin layer of oxide on the surface of the catalyst. More than 80% of the oxygen species can be removed after high temperature hydrogen reduction. The passivation and activation of Mo2N surface are discussed in depth with other research results such as TDS, XRD and thermal analysis.