Zeitschrift für Physik B Condensed Matter

, Volume 73, Issue 4, pp 529–537 | Cite as

Analysis of EXAFS data of complex systems

  • G. U. Kulkarni
  • G. Sankar
  • C. N. R. Rao
Article

Abstract

Analysis of EXAFS data of complex systems containing more than one phase and one type of coordination, has been discussed. It is shown that a modified treatment of EXAFS function as well as the amplitude ratio plots provide useful means of obtaining valuable structural information. The systems investigated are: biphasic Ni+NiO mixture, NiAl2O4 with two coordinations for Ni, NiO+NiAl2O4 mixture, CoS+CoO system and Ni dispersed on Al2O3. The results obtained with these systems have been most satisfactory and serve to illustrate the utility and the applicability of the innovations described in this paper.

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References

  1. 1.
    Sinfelt, J.H., Via, G.H., Lytle, F.W.: Catal. Rev. Sci. Eng.26, 81 (1984)Google Scholar
  2. 2.
    Bart, J.C., Vlaic, G.V.: Adv. Catal.35, 1 (1987)Google Scholar
  3. 3.
    Stern, E.A.: Physical properties of amorphous materials. Alser, D., Schwartz, B.B., Steele, M.C. (eds.), p. 201. New York: Plenum Press 1985Google Scholar
  4. 4.
    Sankar, G., Vasudevan, S., Rao, C.N.R.: J. Chem. Phys.85, 2291 (1986)Google Scholar
  5. 5.
    Sankar, G., Vasudevan, S., Rao, C.N.R.: J. Phys. Chem.90, 5325 (1986)Google Scholar
  6. 6.
    Sankar, G., Vasudevan, S., Rao, C.N.R.: J. Phys. Chem.91, 2011 (1987)Google Scholar
  7. 7.
    Lytle, F.W., Sayers, D., Stern, E.A.: Phys. Rev. B11, 4825 (1975)Google Scholar
  8. 8.
    Sinfelt, J.H., Via, G.H., Lytle, F.W., Greegor, R.B.: J. Chem. Phys.75, 5527 (1981)Google Scholar
  9. 9.
    Halaka, F.G., Boland, J.J., Baldeschwieler, J.D.: J. Am. Chem. Soc.106, 5408 (1984)Google Scholar
  10. 10.
    Sankar, G., Vasudevan, S., Rao, C.N.R.: Chem. Phys. Lett.127, 620 (1986)Google Scholar
  11. 11.
    Lu Kunquan, Wan Jun: Phys. Rev. B35, 4497 (1987)Google Scholar
  12. 12.
    Lu Kunquan, Wan Jun: Solid State Commun.63, 797 (1987)Google Scholar
  13. 13.
    van Zon, J.B.A.D., Koningsberger, D.C., Vant Blik, H.E.J., Sayers, D.E.: J. Chem. Phys.82, 5742 (1985)Google Scholar
  14. 14.
    Ganapathi, L., Subbanna, G.N., Nanjundaswamy, K.S., Rao, C.N.R.: J. Solid State Chem.66, 376 (1987)Google Scholar
  15. 15.
    Sankar, G., Sarode, P.R., Srinivasan, A., Vasudevan, S., Rao, C.N.R., Thomas, J.M.: Proc. Ind. Acad. Sci. (Chem. Sci.)93, 321 (1984)Google Scholar
  16. 16.
    Martens, G., Rabe, P., Schwentner, N., Werner, A.: Phys. Rev. B39, 1411 (1977)Google Scholar
  17. 17.
    Ainsworth, S., Woodruff, D.P.: Solid State Commun.56, 461 (1985)Google Scholar
  18. 18.
    Romeijn, F.C.: Philips Res. Rep.8, 321 (1953)Google Scholar

Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • G. U. Kulkarni
    • 1
  • G. Sankar
    • 1
  • C. N. R. Rao
    • 1
  1. 1.Solid State and Structural Chemistry UnitIndian Institute of ScienceBangaloreIndia

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