Abstract
The fractal properties of xerogels of hydrated zirconium dioxide ZrO2, which are synthesized by precipitation from a zirconyl nitrate solution at various pH values, are studied. Small-angle neutron scattering data and low-temperature nitrogen adsorption data indicate the strong effect of the acidity of the medium on the fractal dimension of xerogels and the size of constituent monomer particles. It is shown that this effect is also characteristic of xerogels of hydrated hafnium dioxide HfO2, which is a chemical analogue of hydrated zirconium dioxide.
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References
D. Kuo, C. Chien, and C. Huang, Thin Solid Films 420–421, 47 (2002).
Y. Zhang, J. Gao, G. Meng, and X. Liu, J. Appl. Electrochem. 34, 637 (2004).
B. Hulm and J. Parker, J. Mater. Sci. 35, 1845 (2000).
F. Yu. Sharikov, V. K. Ivanov, Yu. V. Sharikov, and Yu. D. Tret’yakov, Zh. Neorg. Khim. 51, 1957 (2006).
A. C. Geiculescu and H. J. Rack, J. Non-Cryst. Solids 306, 30 (2002).
M. C. Silva, G. Trolliard, O. Masson, et al., J. Sol-Gel Sci. Technol. 8, 419 (1997).
A. Harrison, Fractals in Chemistry (Oxford Univ. Press, Oxford, 1995).
W. G. Rotschild, Fractals in Chemistry (Wiley, New York, 1998).
A. A. Vertegel, S. V. Kalinin, N. N. Oleynikov, and Yu. D. Tretyakov, J. Non-Cryst. Solids 181, 146 (1995).
J. Teixera, in On Growth and Form-Fractal and Non-Fractal Pattern in Physics, Ed. by H. E. Stanley and N. Ostrovsky (Martinus Nijloff, Boston, 1986), p. 145.
H. B. Shuhrmann, N. Burkhardt, G. Dietrich, et al., Nucl. Instrum. Methods Phys. Res. A 356, 133 (1995).
G. D. Wignall and F. S. Bates, J. Appl. Crystallogr. 20, 28 (1986).
W. Schmatz, T. Springer, J. Schelten, and K. Ibel, J. Appl. Crystallogr. 7, 96 (1974).
H. D. Bale and P. W. Schmidt, Phys. Rev. Lett. 38, 596 (1984).
A. Guinier and G. Fournet, Small-Angle Scattering of X-Rays (Wiley, New York, 1955), p. 17.
P. W. Schmidt, in Modern Aspects of Small-Angle Scattering, Ed. by H. Brumberger (Kluwer Academic, Dordrecht, 1995), p. 30.
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Original Russian Text © G.P. Kopitsa, V.K. Ivanov, S.V. Grigoriev, P.E. Meskin, O.S. Polezhaeva, V.M. Garamus, 2007, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 85, No. 2, pp. 132–136.