Abstract
Nb doped silica was prepared by the sol-gel method. The experimental variables were the pH (acidic and basic) and the Nb concentration (1.0–10.0 wt.%). The samples were calcined at 300°C and 600°C and analyzed by XRD, and FTIR. The TGA and DTA of the gels were also performed. From the XRD results the radial distribution function allowed us to establish the existence of the Si−O−Nb bond in the powders.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. Ochoa and R. Miranda, Mat. Res. Soc. Symp. Proc. 346, 553 (1994).
C.J. Brinker and G.W. Scherer, Sol-Gel Science The Physics and Chemistry of Sol-gel Processing (Academic Press, San Diego CA, 1990).
P.A. Burke and E.I. Ko, J. Catal. 129, 38 (1991).
K. Tanabe, Catal. Today 8, 1 (1990).
S. Okazaki and T. Okuyama, Bull. Chem. Soc. Jpn. 56, 2159 (1983).
M. Nishimura, K. Asakura, and Y. Iwasawa J. Chem. Soc., Chem. Commun. 1660 (1986).
K. Asakura and Y. Iwasawa, Chem. Lett. 859 (1986).
A.G. Alvarez, R.D. Bonetto, D.M.A. Guerin, S. Plastino, and L. Rebollo-Neira, Powder Diffraction 2, 220 (1987).
D.M.A. Guerin, A.G. Alvarez, L.E. Rebollo-Neira, S. Plastino, and R.D. Bonetto Acta. Crystallogr. A42, 30 (1986).
M. Magini and A. Cabrini, J. Appl. Cryst. 5, 14 (1972).
K. Asakura and Y. Iwasawa, J. Phys. Chem. 95, 1711 (1991).
H.P. Klug and L.E. Alexander, in X-ray Diffraction Procedures for Polycrystalline and Amorphous Materials, 2nd ed. (John Wiley Sons, N.Y., 1974).
B.E. Warren, in X-ray Diffraction (Addison Wesley, CA, 1969).
D.B. Copley, F. Fairbrother, K.H. Grundy, and A. Thompson, J. Less Common Metals 6, 590 (1964).
F.P. Gortsema and R. Didchenko, Inorg. Chem. 4, 182 (1965).
B.I. Nabivanets, Russ. J. Inorg. Chem. 44, 182 (1965).
D.B. Copley, F. Fairbrother, K.H. Grundy, and A. Thompson, J. Less Common Metals 6, 407 (1964).
K.W. Bagnall, D. Brown, and P.J. Jones, J. Chem. Soc. 2396 (1964).
F.P. Gortsema and R. Didchenko, Inorg. Chem. 4, 182 (1965).
K. Asakura and Y. Iwasawa, J. Phys. Chem. 95, 1711 (1991).
H. Schäfer, R. Gruehn, and F. Schulte, Angew. Chem. Intl. Ed. 5, 40 (1966).
B.M. Gatehouse and A.D. Wadsley, Acta. Cryst. 17, 1545 (1964).
L.A. Aleshina, V.P. Malinenko, A.D. Phouphanov, and N.M. Jakovleva, J. Non-Cryst. Solids 87, 350 (1986).
A. Chen, G.F. Neilson, and M.C. Weinberg, J. Non-Cryst. Solids 121, 158 (1990).
F.L. Galeener, Phys. Rev. B19 4292 (1979).
G.T. Stranford and R.A. CondrateSr., J. Sol. St. Chem. 52, 248 (1984).
F.L. Galeener, in The Structure of Non Crystalline Materials, (Francis and Taylor, London, 1982), p. 337.
C.J. Philips, J. Non-Cryst. Solids. 63, 347 (1984).
K. Nakamoto, in Infrared and Raman Spectra of Inorganic and Coordination Compounds, 3rd. ed. (Wiley, NY, 1978).
J.J. Legendre, P. Aldebert, N. Baffier, and J. Livage, J. Colloid Interface Sci. 94, 84 (1983).
J.-M. Jehng and I.E. Wachs, Catalysis Today 8, 37 (1990).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Méndez-Vivar, J., Bosch, P. & Lara, V.H. FTIR spectroscopy and X-ray diffraction characterization of Nb doped sol-gel silica. J Sol-Gel Sci Technol 6, 257–262 (1996). https://doi.org/10.1007/BF00402696
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00402696