Facile synthesis and catalytic applications of micro-mesoporous molecular sieve ZK-1

A micro-mesoporous molecular sieve ZK-1 was synthesized at 170 °C by a facile one-step hydrothermal method. The structure of ZK-1 can be controlled by the crystallization time. ZK-1(I), the KIT-1 containing ZSM-5 building units in the pore walls, is formed during 2–6 h. ZK-1(II), A mixture of ZSM-5...

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Bibliographic Details
Published in:Journal of porous materials 2013-08, Vol.20 (4), p.637-645
Main Authors: Liu, Liping, Jin, Fengying, Xiong, Guang, Long, Huayun, Wang, Xiangsheng
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Molecular sieves
Molecular structure
Physical Chemistry
Porosity
Spinning
Walls
X-rays
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Summary:A micro-mesoporous molecular sieve ZK-1 was synthesized at 170 °C by a facile one-step hydrothermal method. The structure of ZK-1 can be controlled by the crystallization time. ZK-1(I), the KIT-1 containing ZSM-5 building units in the pore walls, is formed during 2–6 h. ZK-1(II), A mixture of ZSM-5 and KIT-1, is formed after 8 h. The framework structure, porosity, morphology and acidity of the obtained materials were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Transmission electron microscopy, N 2 adsorption, X-ray fluorescence, NH 3 -temperature programmed desorption and 27 Al Magic angle spinning NMR spectroscopy. The samples exhibit good steam stability and better catalytic performances in the isomerization of o-ethyltoluene than KIT-1, suggesting their promising applications in the conversion of large molecules.
ISSN:1380-2224
1573-4854
DOI:10.1007/s10934-012-9637-3