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Hierarchical zeolites prepared by organosilane templating: A study of the synthesis mechanism and catalytic activity
Koekkoek, Arjan J. J.1; Tempelman, Christiaan H. L.1; Degirmenci, Volkan1; Guo, Meiling2; Feng, Zhaochi2; Li, Can2; Hensen, Emiel J. M.1
关键词Hierarchical Zsm-5 Zeolite Synthesis Organosilane Acid Activity Benzene Oxidation
刊名CATALYSIS TODAY
2011-06-20
DOI10.1016/j.cattod.2010.12.033
168期:1页:96-111
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]BENZENE HYDROXYLATION ; RAMAN-SPECTROSCOPY ; MESOPOROUS ZEOLITES ; MOLECULAR-SIEVE ; ZSM-5 ZEOLITES ; NITROUS-OXIDE ; MFI ZEOLITES ; GENERATION ; FRAMEWORK ; PHENOL
英文摘要The crystallization of hierarchical ZSM-5 in the presence of the organosilane octadecyl-dimethyl-(3-trimethoxysilyl-propyl)-ammonium chloride as the mesoporogen was investigated as a function of time and temperature. The synthesis by this method proceeds in two steps. The rapid formation of a predominantly amorphous disordered mesoporous aluminosilicate precursor phase is followed by the formation of globular highly mesoporous zeolite particles involving dissolution of the precursor phase. It is difficult to completely convert the initial phase into the final hierarchical zeolite. This limits the amount of aluminium built into the MFI network and the resulting Bronsted acidity. In the presence of iron, more crystalline hierarchical zeolite is obtained. These Fe-containing zeolites are excellent catalysts for the selective oxidation of benzene to phenol. Their hierarchical pore structure leads to higher reaction rates due to increased mass transfer and increased catalyst longevity despite more substantial coke formation. (C) 2011 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000291033300012
引用统计
被引频次:39[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142610
专题中国科学院大连化学物理研究所
作者单位1.Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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Koekkoek, Arjan J. J.,Tempelman, Christiaan H. L.,Degirmenci, Volkan,et al. Hierarchical zeolites prepared by organosilane templating: A study of the synthesis mechanism and catalytic activity[J]. CATALYSIS TODAY,2011,168(1):96-111.
APA Koekkoek, Arjan J. J..,Tempelman, Christiaan H. L..,Degirmenci, Volkan.,Guo, Meiling.,Feng, Zhaochi.,...&Hensen, Emiel J. M..(2011).Hierarchical zeolites prepared by organosilane templating: A study of the synthesis mechanism and catalytic activity.CATALYSIS TODAY,168(1),96-111.
MLA Koekkoek, Arjan J. J.,et al."Hierarchical zeolites prepared by organosilane templating: A study of the synthesis mechanism and catalytic activity".CATALYSIS TODAY 168.1(2011):96-111.
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