Tailor and Control of Acidic Strength in Ordered Mesoporous Aluminosilicates by Using Preformed Zeolite Precursors  

作　　者：林森 王利丰 韩宇 于沂 邸岩 王润伟 蒋大振 肖丰收 

机构地区：[1]State Key Laboratory of Inorganic Synthesis and Preparative Chemistry & Department of Chemistry

出　　处：《Chinese Journal of Chemistry》2004年第1期9-13,共5页中国化学（英文版）

基　　金：the National Natural Science Foundation of China (Nos. 29825108, 20173022 and 20121103), the Major State Basic Research Development Program (No. 20000077507) and the National Advanced Materials Committee of China.

摘　　要：The acidic strength of ordered mesoporous aluminosilicates of MAS-2, MAS-3, MAS-7 and MAS-9 and mi-croporous crystals of Y, L, beta, and ZSM-5 zeolites was systemically investigated by temperature-programmed desorption of ammonia (NH3-TPD). Due to the use of preformed zeolite precursors of Y, L, beta and ZSM-5, the ordered mesoporous aluminosilicates with distinguished acidic strength were obtained, being dependent on the type of preformed zeolite precursors. Therefore, the acidic strength of these mesoporous aluminosilicates could be tai-lored and controlled.The acidic strength of ordered mesoporous aluminosilicates of MAS-2, MAS-3, MAS-7 and MAS-9 and mi-croporous crystals of Y, L, beta, and ZSM-5 zeolites was systemically investigated by temperature-programmed desorption of ammonia (NH3-TPD). Due to the use of preformed zeolite precursors of Y, L, beta and ZSM-5, the ordered mesoporous aluminosilicates with distinguished acidic strength were obtained, being dependent on the type of preformed zeolite precursors. Therefore, the acidic strength of these mesoporous aluminosilicates could be tai-lored and controlled.

关 键 词：NH3-TPD acidic strength ordered mesoporous aluminosilicate preformed zeolite precursor 

分 类 号：O643.3[理学—物理化学]