【作者】 熊国兴； 赵宏宾； 谷景华； 盛世善；

【Author】 Xiong Guoxing Zhao Hongbin Gu Jinghua Sheng Shishan (State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics, Chinese Academy of Sciences,Dalian,116023,China)

【机构】 中科院大连化物所催化基础国家重点实验室；

【摘要】 本文报道了一种制备高均一、单一窄孔分布的催化材料的新方法,传统的催化剂和催化膜都是通过对成品,如γ—Al₂O₃载体、γ—Al₂O₃复合陶瓷膜,进行表面修饰来引入活性组份,难以控制活性组份的分布位置与均一性。本文报道了在γ—Al₂O₃的前身γ—AlOOH溶胶中,对胶粒表面进行直接修饰引入各类活性组份的新技术,表征结果表明新催化材料符合设计的组成结构与具有高均一性与高热稳定性。新方法适用于制备各种催化膜与超细催化剂。更多还原

【Abstract】 In the ordinary way to prepare a catalyst or catalytic membrane with sol-gel technique, the end products such asγ-Al₂O₃ catalyst support or supportedγ-Al₂O₃ membrane are used.In this case, it would be hard to control the position and distribution of the deposition of the active components,especially, for the preparation of catalytic membrane. In this paper,we report a new method to prepare catalytic membrane.The active component is introduced directly onto the surface of colloidal particle in boehmite sol with the complexing modification technique. In successive controlling drying and calcination procedure are carried out to obtain the catalytic membrane, in which the active component is monodispersed on the surface ofγ-Al₂O₃ with ultra-fine pore and highly thermal stability.This new method is suitable to prepare various catalytic membrane and ultrafine supported catalysts.更多还原