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Synthesis and characterization of SiO2–Nb2O5systems prepared by the sol–gel method: structural stability studies
2002
Journal of Materials Chemistry
X-Ray diffraction (XRD), N 2 absorption (BET specific surface area), transmission electron microscopy (TEM), Raman and Fourier infrared (FT-IR) spectroscopic techniques have been applied to characterize the texture, structure and niobia-silica interaction of SiO 2 -Nb 2 O 5 systems prepared by the sol-gel method containing different amounts of Nb 2 O 5 and calcined at temperatures between 393 and 1473 K. For a small loading of niobia, amorphous niobium species were well dispersed in the silica
doi:10.1039/b200685e
fatcat:hkecigvq2nhnvnlenfotxcdwei