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Preparation and characterization of titanium-containing MFI from highly siliceous ZSM-5: effect of precursors synthesized with different templates
Zhang, FZ; Guo, XW; Wang, XS; Li, GY; Zhao, Q; Bao, XH; Han, XW; Lin, LW
关键词Ti-zsm-5 Zeolite Secondary Synthesis Organic Template Epoxidation Of Propylene
刊名MATERIALS CHEMISTRY AND PHYSICS
1999-09-15
60期:3页:215-220
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary
研究领域[WOS]Materials Science
关键词[WOS]ZEOLITES ; BETA
英文摘要Titanium-containing MFI zeolites (Ti-ZSM-5) have been prepared by gas-solid reaction between highly siliceous ZSM-5 precursors synthesized with different organic molecules, and TiCL4 vapor at elevated temperature. XRD, FT-IR, UV-Vis, Si-29 and Al-27 solid NMR techniques are used to characterize precursors and Ti-ZSM-5 zeolites. Highly siliceous ZSM-5 synthesized with different templates possesses different amount of internal silanol groups clustered as silanol nests in framework. When the precursor is contacted with TiCl4 vapor at elevated temperature, titanium atoms are incorporated into the tetrahedral sites by the reaction between TiCl4 and silanol nests, not by the isomorphous substitution of titanium for framework aluminium or/and silicon. Highly siliceous ZSM-5 precursor synthesized with NEA, TEABr or HDA template possesses relatively large amount of internal silanol groups, and then obtains high concentrations of framework titanium after contacted with TiCl4 vapor, compared to those synthesized with TPAOH or TPABr template. In addition, Ti-ZSM-5 with precursors obtained by using NEA, TEABr or HDA template can occupy higher catalytic activity in the epoxidation of propylene with diluted hydrogen peroxide. (C) 1999 Elsevier Science S.A. All rights reserved.
语种英语
WOS记录号WOS:000082138000001
引用统计
被引频次:14[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/321008/138570
专题中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, Lab Comprehens Utilizat Carbonaceous Resources, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Zhang, FZ,Guo, XW,Wang, XS,et al. Preparation and characterization of titanium-containing MFI from highly siliceous ZSM-5: effect of precursors synthesized with different templates[J]. MATERIALS CHEMISTRY AND PHYSICS,1999,60(3):215-220.
APA Zhang, FZ.,Guo, XW.,Wang, XS.,Li, GY.,Zhao, Q.,...&Lin, LW.(1999).Preparation and characterization of titanium-containing MFI from highly siliceous ZSM-5: effect of precursors synthesized with different templates.MATERIALS CHEMISTRY AND PHYSICS,60(3),215-220.
MLA Zhang, FZ,et al."Preparation and characterization of titanium-containing MFI from highly siliceous ZSM-5: effect of precursors synthesized with different templates".MATERIALS CHEMISTRY AND PHYSICS 60.3(1999):215-220.
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