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|Title:||Incorporation of titanium into polymorph C for catalytic epoxidation of cyclohexene|
|Source:||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|
|Appears in Collections:||Staff Publications|
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