Exafs Study of (La1-XCex)2Zr207

MRS Online Proceedings Library volume 353, pages783–789(1994)Cite this article

Abstract

The local structures around Zr atoms such as coordination number of oxygen and cations, and the Zr-0 and Zr-Ln (Ln; La, Ce) interatomic distances in the (La1-xCex).2Zr2O7 Pyrochlore compounds (X = 0-0.25), where Ce is a simulation of actinides,were studied by means of extended X-ray absorption fine structure (EXAFS) spectrometry. The local structure determined by EXAFS in this study is discussed in relation to the dissolution behavior of (La1-xCex)2Zr207 (leaching rates of Zr, La and Ce) in an acid solution (pH=1) at 363K reported previously. The difference in the local structure before and after leaching test was also investigated.

This is a preview of subscription content, access via your institution.

Access options

Buy single article

Instant access to the full article PDF.

US$ 39.95

Tax calculation will be finalised during checkout.

References

  1. 1.

    I. Hayakawa and H. Kamizono, J. Mater. Sci. 28, 513 (1993).

    CAS  Article  Google Scholar 

  2. 2.

    I. Hayakawa and H. Kamizono, J. Nucl. Mater. 202, 163 (1993).

    CAS  Article  Google Scholar 

  3. 3.

    T. Muromura and Y. Hinatsu, J. Nucl. Mater. 151, 55 (1987).

    CAS  Article  Google Scholar 

  4. 4.

    I. Hayakawa and H. Kamizono, Mat. Res. Soc. Symp. Proc. 257, 257 (1992).

    CAS  Article  Google Scholar 

  5. 5.

    T. Uehara, K. Kato, S. Emura and F. Kanamaru, Solid State Ionics 23, 331 (1987).

    CAS  Article  Google Scholar 

  6. 6.

    M. A. Subramanian, G. Aravamudan and G. V. Subba Rao, Prog. Solid St. Chem. 15, 55 (1983).

    CAS  Article  Google Scholar 

  7. 7.

    B. K. Teo and P. A. Lee, J. Am. Chem. Soc. 101, 2815 (1979).

    CAS  Article  Google Scholar 

  8. 8.

    B. Chakoumakos, J. Solid State Chem. 53, 120(1984).

    CAS  Article  Google Scholar 

  9. 9.

    F. Mazzl and R. Munno, Am. Miner. 68, 262 (1983).

    Google Scholar 

  10. 10.

    T. J. White, ibid. 69, 1156 (1984).

    CAS  Google Scholar 

  11. 11.

    C. Petit, A. Kaddouri, S. Libs, A. Kiennemann, J. L. Rehspringer and P. Poix, J. Catalysis 140, 328 (1993).

    CAS  Article  Google Scholar 

Download references

Author information

Affiliations

  1. Department of Nuclear Engineering, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-01, Japan

    Hiroto Yokoi & Tsuneo Matsui

  2. Office of Synchrotron Radiation Facility Project, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-11, Japan

    Hideo Ohno

  3. Photon Factory, National Laboratory for High Energy Physics, Tsukuba, Ibaraki, 305, Japan

    Katsumi Kobayashi

Authors
  1. Hiroto Yokoi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Tsuneo Matsui
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hideo Ohno
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Katsumi Kobayashi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Hiroto Yokoi.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Yokoi, H., Matsui, T., Ohno, H. et al. Exafs Study of (La1-XCex)2Zr207. MRS Online Proceedings Library 353, 783–789 (1994). https://doi.org/10.1557/PROC-353-783

Download citation