Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene

Lee, F. Y., Lv, L., Su, F. B., Liu, T., Liu, Y., Sow, C. H. and Zhao, X. S. (2009) Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene. Microporous and Mesoporous Materials, 124 1-3: 36-41. doi:10.1016/j.micromeso.2009.04.036


Author Lee, F. Y.
Lv, L.
Su, F. B.
Liu, T.
Liu, Y.
Sow, C. H.
Zhao, X. S.
Title Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene
Journal name Microporous and Mesoporous Materials   Check publisher's open access policy
ISSN 1387-1811
Publication date 2009-08
Sub-type Article (original research)
DOI 10.1016/j.micromeso.2009.04.036
Volume 124
Issue 1-3
Start page 36
End page 41
Total pages 6
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Language eng
Formatted abstract
Incorporation of titanium into the framework of polymorph C of zeolite beta was attempted in a hydrothermal system using different titanium precursors of various contents in the synthesis gel. Samples were characterized using X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), inductive-coupled plasma-atomic emission spectrometer (ICP-AES), X-ray photoelectron spectroscope (XPS), and X-ray absorption near edge structure (XANES) techniques. Characterization results revealed that the incorporation of titanium into the framework of polymorph C can be achieved using Ti(NH4)2F6 as the titanium precursor without significantly affecting the crystalline structure of polymorph C. The sample synthesized with a Si/Ti molar ratio of 20 was found to possess the highest catalytic activity while the sample synthesized with a Si/Ti molar ratio of 5 was observed to display the highest selectivity in the epoxidation of cyclohexene. © 2009 Elsevier Inc. All rights reserved.
Keyword Polymorph C
Titanium
Zeolite beta
Epoxidation
Zeolite-Beta
Hydrogen-Peroxide
Family
Intergrowth
Ets-10
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
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