Advertisement

Analysis of Alumina-Supported Catalysts by XPS

  • B. G. Baker
  • M. Jasieniak

Abstract

The application of X-ray photoelectron spectroscopy for determining the chemical state of supported catalysts is discussed with particular reference to the system iron-praseodymium-alumina. The XPS studies are complicated by the variable valency, intermediate stoichiometrics and by the variety of structure possibilities in the iron-praseodymium-alumina system. Techniques to cope with differential charging of the sample are described and results presented for the surface characterization of hydrogen conditioned catalysts. Extensive reaction between the catalyst components is shown to occur. It is shown that praseodymium is incorporated in the alumina support and that the reaction of iron at this surface can be distinguished from the reaction in the unpromoted iron-alumina catalyst.

Keywords

Binding Energy Electron Binding Energy Differential Charge Praseodymium Oxide Unpromoted Catalyst 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    B.G. Baker and N.J. Clark, Studies in Surface Science and Catalysis, 31, 455 (1987).CrossRefGoogle Scholar
  2. 2.
    B.G. Baker and M. Jasieniak, in Surface Science: Principles and Applications, in Springer Proceed, in Physics 73, ed. by R.F. Howe, R.N. Lamb and K. Wandelt, (Springer-Verlag 1993) pp. 279–289.Google Scholar
  3. 3.
    B.G. Baker, in Surface Analysis Methods in Material Science, Springer Ser. in Surface Sci. 23, ed by D.J. O’Connor, B.A. Sexton and R.St.C. Smart, (Springer-Verlag 1992) pp. 337–351.Google Scholar
  4. 4.
    I. Sushumna and E. Ruckenstein, J. Catal., 94, 239 (1985).CrossRefGoogle Scholar
  5. 5.
    M.L. Colainni, P.J. Chen and J.T. Yates, Surf. Sci., 238, 13 (1990).CrossRefGoogle Scholar
  6. 6.
    R.L.N. Sastry, P.N. Mehrotra and C.N.R. Rao, J. Inorg. Nucl. Chem., 28, 1579 (1966).Google Scholar
  7. 7.
    D.A. Stevenson and N.J. Binkowski, J. Non-Cryst. Solids, 22, 399 (1976).CrossRefGoogle Scholar
  8. 8.
    W.J. Landis and J.R. Martin, J. Vacuum Sci. Technol., A2, 1108 (1984).Google Scholar
  9. 9.
    A. Kotani and H. Ogasawara, J. Electron Spectrosc. Relat. Phenom., 60, 257 (1992).CrossRefGoogle Scholar
  10. 10.
    P. Burroughs, A. Hamnett, A.F. Orchard and G. Thornton, J. Chem. Soc., Dalton Trans., 17, 1686 (1976).CrossRefGoogle Scholar
  11. 11.
    A. Bianconi, K. Kotani, K. Okada, R. Giorgi, A. Gargano, A. Marcelli and T. Miyahara, Phys. Rev. B, 38, 3433 (1988).CrossRefGoogle Scholar
  12. 12.
    Handbook of X-ray Photoelectron Spectroscopy, ed. by J. Chastain, (Perkin-Elmer Corporation, Physical Electronics Division 1992).Google Scholar
  13. 13.
    L. Erying, in Handbook of the Physics and Chemistry of Rare Earth, Vol. 3, ed. by K.A. Gschneidner and Erying, (North-Holland Publishing Company 1979) pp. 337–399.Google Scholar
  14. 14.
    Yu.D. Tretyakov, V.V. Sorokin and A.P. Erastova, J. Solid State Chem., 18, 263 (1976).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • B. G. Baker
    • 1
  • M. Jasieniak
    • 1
  1. 1.School of Physical SciencesFlinders UniversityAdelaideAustralia

Personalised recommendations