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Tailor and Control of Acidic Strength in Ordered Mesoporous Aluminosilicates by Using Preformed Zeolite Precursors
Author(s) -
Lin Sen,
Wang LiFeng,
Han Yu,
Yu Yi,
Di Yan,
Wang RunWei,
Jiang DaZhen,
Xiao FengShod
Publication year - 2004
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20040220104
Subject(s) - aluminosilicate , zeolite , microporous material , mesoporous material , chemistry , molecular sieve , chemical engineering , inorganic chemistry , acid strength , desorption , adsorption , organic chemistry , catalysis , engineering
The acidic strength of ordered mesoporous aluminosilicates of MAS‐2, MAS‐3, MAS‐7 and MAS‐9 and microporous crystals of Y. L, beta, and ZSM‐5 zeolites was systemically investigated by temperature‐programmed desorption of ammonia (NH 3 ‐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 tailored and controlled.