Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.micromeso.2009.04.036
Title: Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene
Authors: Lee, F.Y.
Lv, L. 
Su, F.
Liu, T. 
Liu, Y.
Sow, C.H. 
Zhao, X.S. 
Keywords: Epoxidation
Polymorph C
Titanium
Zeolite beta
Issue Date: Aug-2009
Citation: Lee, F.Y., Lv, L., Su, F., Liu, T., Liu, Y., Sow, C.H., Zhao, X.S. (2009-08). Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene. Microporous and Mesoporous Materials 124 (1-3) : 36-41. ScholarBank@NUS Repository. https://doi.org/10.1016/j.micromeso.2009.04.036
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.
Source Title: Microporous and Mesoporous Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/89224
ISSN: 13871811
DOI: 10.1016/j.micromeso.2009.04.036
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