Tiozzo C1, Bisio C, Carniato F, Gallo A, Scott SL, Psaro R, Guidotti M.
Phys Chem Chem Phys. 2013 Aug 28;15(32):13354-62. doi: 10.1039/c3cp51570b.Niobium-containing silica materials obtained by deposition via liquid-phase grafting or dry impregnation of niobocene(iv) dichloride are active and selective catalysts in the epoxidation of alkenes in the presence of aqueous hydrogen peroxide. The generation of the catalytically-active Nb species was followed step-by-step, and investigated using a combined DR-UV-Vis, NIR, Raman, XRD, XANES and EXAFS analyses. Read More