The catalysts on studying can divide into two kinds: the transition metal bifunctional catalysts and the nitride, carbide and oxycarbide catalysts of transition metals.

目,烷脱氢异构催剂可以分为两类,过渡金属双功能催剂和过渡金属氮、碳和碳氧催剂。

The reason for the fail of carbon nitride synthesis was analysed and relevant graphitoid carbon nitride and unformed carbon nitrides were introduced in the article.

分析了妨碍碳氮成成功的原因,对相关的类石墨的碳氮和无定型的碳氮作了介绍。