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Nanoscale Structural Features of Ultra-fine Zirconia Powders Obtained Via Precipitation-hydrothermal Treatment Route

  • Vladislav A. Sadykov (a1) (a2), Vladimir I. Zaikovskii (a1), Dmitrii A. Zyuzin (a1), Ella M. Moroz (a1), Elena B. Burgina (a1), Arcady V. Ishchenko (a2), Vitaly G. Kostrovskii (a3) and Valerii A. Matyshak (a4)...

Abstract

Genesis of the structure of zirconia fine particles prepared by precipitation of amorphous hydrated zirconia by ammonia from the ZrO(NO3)2 solution followed by a mild hydrothermal treatment (HTT) of precipitate, washing and calcination under air up to 1000 °C has been studied by HRTEM, X-ray diffraction, Raman and FTIRS. HTT rearranges the structure of amorphous zirconia, which helps to obtain nearly single-phase monoclinic nanozirconia (particle size 5-15 nm) after a mild calcination at 500 °C. Dehydroxilation and sintering of these nanoparticles at higher (600-650 °C) temperatures generate polysynthetic (001) twins. Modeling revealed that reappearance of the (111) “cubic” reflex in XRD patterns of samples calcined at 600-650 °C can be due to these extended defects. In their vicinity, the seven-fold Zr-O coordination sphere is retained, while packing of ZrO7 polyhedra is varied towards more symmetric structures, thus causing disappearance of the Raman spectra.

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1 Goodenough, J.B., Nature 404, 821 (2000).
2 Chuah, G.K., Jaenicke, S., and Pong, B.K., J. Catal. 175, 80 (1998).
3 Shukla, S., and Seal, S., J. Phys. Chem. B 108, 3395 (2004).
4 Sureh, A., Mayo, M. J., and Porter, W.C., J. Mater. Res. 18, 2912 (2003).
5 Pacheco, G. and Fripiat, J.J., J. Phys. Chem. B 104, 11906 (2000).
6 Sadykov, V.A., Lunin, V.V., Matyshak, V.A., Paukshtis, E.A., Rozovskii, A. Ya. and J.Ross, R.H., Kinet. Catal. 44, 379 (2003).
7 Konin, G.A, Il'ichev, A.N., Matyshak, V.A., Khomenko, T.I., Korchak, V.N., Sadykov, V.A., Doronin, V.P., Bunina, R.V., Alikina, G.M., Kuznetsova, T.G., Paukshtis, E.A., Fenelonov, V.B., Zaikovskii, V.I., Rozovskii, A. Ya., Top. Catal. 17, 193 (2001).
8 Katz, G., J. Am. Ceram. Soc. 54, 531 (1971).
9 Cherepanova, S.V., Tsybulya, S.V., J. Molec. Catal. 158, 263 (2000).
10 Garvie, R.C., J. Phys. Chem. 82, 218 (1978).
11 Oleinikov, N.N., Pentin, I.V., Muravyeva, G.P., and Ketsko, V.A., Zh. Neorg. Khim. 46, 1413 (2001).
12 Depero, L.E. and Levrangi, P., J. Solid State Chem. 10, 190 (1994).
13 Smith, K., and Newkirk, H.W., Acta Cryst. 18, 983 (1965).
14 Zyuzin, D.A., Cherepanova, S.V., Moroz, E.M., Burgina, E.B., Kostrovskii, V.G., Sadykov, V.A., Matyshak, V.A., to be published.
15 Phillippi, C. M., Mazdiyasni, K. S., J. Amer. Ceram. Soc. 54, 254 (1971).
16 Sadykov, V.A., Kuznetsova, T.G., Alikina, G.M., Frolova, Y.V., Lukashevich, A.I., Potapova, Y.V., Muzykantov, V.S., Rogov, V.A., Kriventsov, V.V., Kochubei, D.I., Moroz, E.M., Zyuzin, D.I., Zaikovskii, V.I., Kolomiichuk, V.N., Paukshtis, E.A., Burgina, E.B., Zyryanov, V.V., Uvarov, N.F., Neophytides, S., Kemnitz, E.. Catal. Today 93-95, 45 (2004).
17 Clearfield, A., Inorg. Chemn. 3, 146 (1964).

Nanoscale Structural Features of Ultra-fine Zirconia Powders Obtained Via Precipitation-hydrothermal Treatment Route

  • Vladislav A. Sadykov (a1) (a2), Vladimir I. Zaikovskii (a1), Dmitrii A. Zyuzin (a1), Ella M. Moroz (a1), Elena B. Burgina (a1), Arcady V. Ishchenko (a2), Vitaly G. Kostrovskii (a3) and Valerii A. Matyshak (a4)...

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