Abstract
Gas adsorption techniques have been used to study the pore texture changes occurring in composite SnO2-CeO2 materials of varying Sn:Ce atom ratios on calcination at temperatures up to 1273 K. The data show that the uncalcined materials are largely microporous in nature, but changes in specific surface area, pore sizes and pore volume occur at an early stage in the calcination process with the formation of mesopores. However, significant changes occur at calcination temperatures >673 K at which point the mesopores are substantially reduced, and at 873 K and above the mean pore size increases greatly finally giving non-porous solids after calcination at 1273 K.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K.S.W. Sing, D.H. Everett, R.A.W. Haul, L. Moscou, R.A. Pierotti, J. Rouquerol, and T. Siemieniewska, Pure Appl. Chem. 57 (1985).
S.J. Gregg and K.S.W. Sing, Adsorption, Surface Area and Porosity, 2nd ed. (Academic Press, London, 1982).
G.D. Parfitt and K.S.W. Sing (Eds.), Characterisation of Powder Surfaces (Academic, New York, 1976).
E.W. Washburn, Phys. Rev. 17, 273 (1912).
L.A. DeWit and J.J.F. Scholten, J. Catal. 36, 36 (1975).
J.D.F. Ramsay, in Characterisation of Porous Solid, edited by K.K. Unger, J. Rouquerol, K.S.W. Sing, and H. Kral (Elsevier, Amsterdam, 1988), p. 23.
P.W. Schmidt, in Characterisation of Porous Solids, edited by K.K. Unger, J. Rouquerol, K.S.W. Sing, and H. Kral (Elsevier, Amsterdam, 1988), p. 35.
L.H. Cohan and J.H.L. Watson, Rubber Age 68 (1951), p. 687.
D.C. Havard and R. Wilson, J. Colloid Interface Sci. 57, 276 (1976).
(a) S.J. Gregg and K.S.W. Sing, Adsorption Surface Area and Porosity (Academic Press, 1967), p. 121. (b) B.C. Lippens and J.J. Streggerda, in Physical and Chemical Aspects of Adsorbents and Catalysts, edited by J.H. de Boer and B.G. Linsen (Academic Press, London and New York, 1970), pp. 171- 211.
(a) P.J. Anderson and R.F. Horlock, Trans. Faraday Soc. 63, 2316 (1967). (b) J.D.F. Ramsay and R.G. Avery, in Characterisation of Porous Solids, edited by S.J. Gregg, K.S.W. Sing, and H.F. Stoeckli (Society of Chemical Industry, London, 1979), pp. 117- 125. (c) J. Rouquerol, F. Rouquerol, and M. Ganteaume, J. Catal. 57, 222 (1979).
C.J. Brinker and S.P. Mukherjee, J. Mater. Sci. 16, 1980 (1981).
D.M. Krol and J.G. van Lierop, J. Non-Cryst. Solid 63, 131 (1987).
B.E. Yoldas, Bull. Am. Ceram. Soc. 54, 286 (1975).
J.D.F. Ramsay and B.O. Booth, J. Chem. Soc., Faraday Trans. I 79, 173 (1983).
K.S.W. Sing, in Characterisation of Powder Surfaces, edited by G.D. Parfitt and K.S.W. Sing (Academic Press, New York, 1976), p. 34.
M.R. Bhambhani, P.A. Cutting, K.S.W. Sing, and D.H. Turk, J. Colloid Interface Sci. 38, 109 (1972).
S.G. Gregg and K.S.W. Sing, Adsorption, Surface Area and Porosity, 2nd ed. (Academic Press, London, 1982).
K.S.W. Sing, in Principles and Applications of Pore Structural Characterisation, edited by J.M. Haynes and P. Rossi-Doria (Arrowsmith, Bristol, 1985), p. 1.
J. Zarzycki, in Glass Science and Technology, edited by D.R. Uhlmann and N.J. Kreidl (Academic Press, New York, 1984), vol. 2.
A. Guest and P.G. Harrison, J. Chem Soc., Faraday Trans. I 83, 3383 (1987).
R.K. Iler, The Chemistry of Silica (Wiley, New York, 1979), p. 546.
J. Zarzycki, in Glass Science and Technology, edited by D.R. Uhlmann and N.J. Kreidl (Academic Press, New York, 1984), vol. 2.
C.J. Brinker and G.W. Scherer, Sol-Gel Sciences (Academic Press, New York, 1989).
S.J. Gregg and K.S.W. Sing, in Surface and Colloid Science, edited by E. Matijevic (John Wiley, 1976), vol. 9, p. 231.
P.J.M. Carrott and K.S.W. Sing, Adsorption Sci. and Techn. 31 (1984).
J.H. De Boer, B.G. Linsen, Van Der Plas, Th., and G.I. Zondervan, J. Catal. 4, 649 (1965).
R.K. Iler, The Chemistry of Silica (Wiley, New York, 1979), p. 496.
Rights and permissions
About this article
Cite this article
Azelee, W., Harrison, P.G. Investigation of the Pore Texture of SnO2-CeO2 Composite Oxides. Journal of Sol-Gel Science and Technology 9, 41–52 (1997). https://doi.org/10.1023/A:1026408306645
Issue Date:
DOI: https://doi.org/10.1023/A:1026408306645