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Calcined Ti-MCM-41 was silylated by trimethylchlorosilane in the vapor phase for 2–9 h. 29 Si MAS NMR spectroscopic study showed that Ti-MCM-41 silylated for 2–5 h exhibited a peak at 11 ppm, which was assigned to (CH 3 ) 3 SiOSi(OSi) 3 species. Further silylation of Ti-MCM-41 for 5–9 h gave an additional peak at 5.1 ppm, which was assigned to novel titanium species...
Catalytic oxidation of olefins (styrene and cyclohexene) and alcohols (benzyl alcohol and cyclohexanol) under air pressure by molecular oxygen over Cu 2 (OH)PO 4 and Cu 4 O(PO 4 ) 2 catalysts has been studied. The catalytic data show that these catalysts are very active in the catalytic oxidation of olefins and alcohols. Adsorption of molecular oxygen on Cu...
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