用共沉淀法和浸渍法制备了以Mo为主并含有少量金属Ti,Zr,Co,Ce或La的双组分氮化物,利用XRD,BET和DTA表征了样品的物相组成、孔结构和氮化过程.结果表明,在共沉淀法制备的样品上,Co或Zr可以和Mo生成某种无定形复合氮化物CoMoNx或ZrMoNx;Ti和Mo生成TiN-Mo2N混合物;稀土元素Ce或La的钼酸盐不能被氮化.对于用共沉淀法制备的样品,第二组分的加入有利于Mo的氮化.浸渍法制备的样品上除Mo2N外,还有MoO2相存在.不同的制备方法对氮化物的比表面积也有影响.
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