Synthesis and characterization of NaY/MCM-48 composite molecular sieve

被引：0
|
作者：
Li Yong-Xin [1 ]
Zhang Yan-Hua
Xue Bing
机构：
[1] Jiangsu Polytech Univ, Dept Chem Engn, Changzhou 213016, Peoples R China
[2] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
来源：
JOURNAL OF INORGANIC MATERIALS | 2006年 / 21卷 / 05期
关键词：
NaY/MCM-48 composite molecular sieve; pore wall; pore size; hydrothermal stability; acid strength;
D O I：
暂无
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new material NaY/MCM-48 composite molecular sieve was prepared with NaY-zeolite as the inner core. The synthesized composite sample was characterized by XRD, SEM, TEM, IR, N-2 adsorption/desorption method and TPD. In addition, it's hydrothermal stability was studied. The results show that the composite material has the properties of both mesoporous MCM-48 and the microporous NaY. The composite molecular sieve has thicker pore wall, larger pore size, stronger acid strength and higher hydrothermal stability than pure mesoporous molecular sieve MCM-48. The DFT pore diameter is mainly located at 1.2nm and 3.2nm.
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页码：1209 / 1216
页数：8
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