Catalytic performance of a wide range of rare-earth titanate pyrochlore (RE2Ti2O7, RE = Sm, Gd, Dy, and Yb) microstructures in the epoxidation of cyclooctene: An electro-structural investigation

A series of rare-earth titanate oxides RE2Ti2O7 (RE =Sm, Gd, Dy and Yb) were synthesized using a solid state method. The pyrochlore structures of these compounds were confirmed by the Rietveld method from X-ray diffraction data (XRD). XRD results showed that RE2Ti2O7 structures had cubic crystal system with the Fd3m space group. Morphology and mean particle sizes of the samples were obtained by the scanning electron microscope (SEM). Chemical …