Title of article :
Synthesis of Mo-SBA-1 catalyst via sol–gel process and its activity
Author/Authors :
S. Wongkasemjit، نويسنده , , S. Tamuang، نويسنده , , W. Tanglumlert، نويسنده , , T. Imae، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2009
Abstract :
Mo-SBA-1 was successfully synthesized via sol–gel process using silatrane and molybdenum glycolate precursors as silica and molybdenum sources, respectively, and hexadecyltrimethylammonium bromide (C16TMAB) as template at room temperature. The X-ray diffraction (XRD) result showed the characteristics of a three-dimensional cubic structure, Pm3n space group. The incorporation of the molybdenum species into the SBA-1 framework was indicated by the diffuse reflectance ultraviolet–visible (DRUV) result, and it was found that 5 mol% of molybdenum could be introduced into the SBA-1 without any extra-framework species. The activity of the synthesized Mo-SBA-1 catalyst was investigated via epoxidation reaction of styrene monomer, and it showed high activity. The only products of this reaction were styrene oxide and benzaldehyde.
Keywords :
Epoxidation of styrene , SBA-1 , Mesoporous silica , Sol–gel process
Journal title :
Materials Chemistry and Physics
Journal title :
Materials Chemistry and Physics