本文首先使用水热法合成的纳米Fe-ZSM-5分子筛,随后用聚二基二甲基氯化铵(PDDA)对分子筛表面进行预处理或直接加入到全硅的晶化体系中,得到核壳结构分子筛Fe-ZSM-5@Si O2。通过X射线衍射(XRD)、透射电镜(TEM)、扫描电镜(SEM)对样品的形貌结构进行分析,并在固定床反应器中对催化剂在NH3-SCR反应中的催化活性进行测试。 In this paper, the Fe-ZSM-5 zeolite synthesized by hydrothermal method was firstly used, and then the surface of the molecular sieve was pretreated with polydimethylammonium chloride (PDDA) or directly into the crystallization system of all-silicon to obtain the nucleus Shell structure molecular sieve Fe-ZSM-5 @ Si O2. The morphology of the samples was analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The catalytic activity of the catalysts in NH3-SCR reaction was tested in a fixed bed reactor.