Structure Specificity of Nanocrystalline Praseodymia Doped Ceria

Abstract

The features of the structure of nanorystalline Ce1-xPrxO2-y system (0 ≤ × ≤ 0.5) prepared via a complex polymerized precursor (Pechini) route have been elucidated by using a combination of spectroscopic (XANES, XPS) and structural (TEM, neutron diffraction) methods. Within the studied range of composition, the structure of all samples air annealed at 500 °C corresponds to single-phase fluorite-like solid solution. The relative content of Pr3+ both in the bulk and in the surface layer appears to be as high as 20–50%. The Rietveld refinement revealed non-monotonous variation of structural parameters (lattice parameter, domain size, microstrain density, Ce-O and O-O distances) and residual lattice hydroxyls concentration with Pr content. Clustering of defects along with variation of the mean Pr cation radius/charge state and disordering of the surface layer/ domain boundaries appear to be responsible for the observed features.

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References

  1. 1.

    P. Knauth, H.L. Tuller, Mat. Res. Soc. Symp. Proc. 548 (1999) 429

    CAS  Article  Google Scholar 

  2. 2.

    R. Bouchet, P. Knauth, T. Stefanik, H.L. Tuller, in Solid State Ionics 2002, Mat. Res. Soc. Symp. Proc. 756, 169 (2003).

    CAS  Google Scholar 

  3. 3.

    J.-H. Hwang, and T.O. Mason, Z. Phys. Chem. 207, 21 (1998)

    CAS  Article  Google Scholar 

  4. 4.

    G. Kuznetsova, V. A. Sadykov, E. M. Moroz, S. N. Trukhan, E. A. Paukshtis, V. N. Kolomiichuk, E. B. Burgina, V. I. Zaikovskii, M. A. Fedotov, V. V. Lunin, E. Kemnitz, Stud. Surf. Sci. Catal. 143, 659 (2002).

    CAS  Article  Google Scholar 

  5. 5.

    B. N. Goshchitskii and A. Z. Menshikov, Neutron News 7, 12 (1996)

    Article  Google Scholar 

  6. 6.

    H. M. Rietveld, J. Appl. Crystallogr. 2, 65 (1969)

    CAS  Article  Google Scholar 

  7. 7.

    J. Rodriges-Carvajal, Physica B 192, 155 (1993).

    Google Scholar 

  8. 8.

    M. Yu. Sinev, G. W. Graham, L. P. Haack, M. Shelef, J. Mater. Res. 11, 1960 (1996).

    Article  Google Scholar 

  9. 9.

    H. Borchert, Y.U. Frolova, V. Kaichev, I. Prosvirin, G. Alikina, A. Lukashevich, V. Zaikovskii, E. Moroz, S. Trukhan, V. Ivanov, E. Paukshtis, V. Bukhtiyarov, V. Sadykov, J. Phys. Chem. B (2005), in press.

    Google Scholar 

  10. 10.

    G. Kaindl, G. Schmiester, E.V. Sampathkumaran, Phys. Rev. B 38, 10174 (1988)

    CAS  Article  Google Scholar 

  11. 11.

    F. Zhang, P. Wang, J. Koberstein, S. Khalid, S.-W. Chan, Surf. Sci. 563, 74 (2004).

    CAS  Article  Google Scholar 

  12. 12.

    B.R. Sekhar, M. Hervieu, and F. Studer, J. Phys. Condens. Matter 9, 2485 (1997).

    CAS  Article  Google Scholar 

  13. 13.

    F.W. Lytle, G. van der Laan, R.B. Greegor, E.M. Larson, C.E. Violet, and J. Wong, Phys. Rev. B, 41, 8955 (1990).

    CAS  Article  Google Scholar 

  14. 14.

    M. Nauer, C.H. Ftikos, B.C.H. Steele, J. Eur. Ceram. Soc. 14, 493 (1994).

    CAS  Article  Google Scholar 

  15. 15.

    P. Shuk, M. Greenblatt, Solid State Ionics 116, 217 (1999).

    CAS  Article  Google Scholar 

  16. 16.

    A.E. Sovestnov, V.A. Shaburov, B.T. Melekh, I.A. Smirnov, Y.U.P. Smirnov, A.V. Egorov, Phys. Solid State 36, 620 (1994).

    Google Scholar 

  17. 17.

    V. Perebeinos, S.-W. Chan, F. Zhang, Solid State Commun. 123, 295 (2002)

    CAS  Article  Google Scholar 

  18. 18.

    S.J. Hong, A.V. Virkar, J. Am. Ceram. Soc. 78, 433 (1995)

    CAS  Article  Google Scholar 

  19. 19.

    M. Yashima, N. Ishizawa, and M. Yoshimura, J. Am. Ceram. Soc. 75, 1541 (1992).

    CAS  Article  Google Scholar 

  20. 20.

    R.D. Shannon, Acta Crystallogr. Sec. A 32, 751 (1976)

    Article  Google Scholar 

Download references

Acknowledgments

This work is in part supported by the INTAS 01-2162, ISTC 2529, RFBR 03-03-32340a Projects and Integration Projects 39 and 110 of SB RAS. The DAAD postdoctoral research fellowship to H.B. is also gratefully acknowledged.

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Correspondence to Vladislav A. Sadykov.

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Sadykov, V.A., Voronin, V., Petrov, A.N. et al. Structure Specificity of Nanocrystalline Praseodymia Doped Ceria. MRS Online Proceedings Library 848, 276–281 (2004). https://doi.org/10.1557/PROC-848-FF5.2.1/K5.2

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