Advertisement

Journal of Materials Science

, Volume 28, Issue 17, pp 4651–4659 | Cite as

Preparation and characterization of chromium oxide supported on zirconia

  • Jong Rack Sohn
  • Sam Gon Ryu
  • Man Young Park
  • Young Il Pae
Papers

Abstract

Chromium oxide/zirconia was prepared by dry impregnation of powdered Zr(OH)4 with an aqueous solution of (NH4)2CrO4. The characterization of prepared samples was performed using Fourier-transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and differential thermal analysis (DTA), and by measurement of the surface area. The addition of chromium oxide to zirconia shifted the transitions of ZrO2 from the amorphous to the tetragonal phase and from the tetragonal to the monoclinic phase to higher temperatures due to the strong interaction between chromium oxide and zirconia; and the specific surface area of the samples increased in proportion to the chromium-oxide content. Since the ZrO2 stabilizes supported chromium oxide, chromium oxide was well dispersed on the surface of zirconia, and α-Cr2O3 was only observed at calcination temperatures above 1173 K. Upon the addition of only small amounts of chromium oxide (1 wt % Cr) to ZrO2, both the acidity and acid strength of the samples increased remarkably, showing the presence of two kinds of acid sites on the surface of CrOx/ZrO2 (Brönsted and Lewis acid sites).

Keywords

Zirconia Chromium Acidity Calcination Strong Interaction 
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.
    J. P. Hogan, J. Polym. Sci. 8 (1970) 2637.CrossRefGoogle Scholar
  2. 2.
    D. L. Myers and J. H. Lunsford, J. Catal. 99 (1986) 140.CrossRefGoogle Scholar
  3. 3.
    A. Clark, Catal. Rev. 3 (1969) 145.CrossRefGoogle Scholar
  4. 4.
    C. Groeneveld, P. P. M. M. Wittgen, A. M. van Kersbergen, P. L. M. Mestrom, C. E. Nuijten and G. C. A. Schuit, J. Catal. 59 (1979) 153.CrossRefGoogle Scholar
  5. 5.
    M. Shelef, K. Otto and H. Gandhi, J. Catal. 12 (1968) 361.CrossRefGoogle Scholar
  6. 6.
    M. P. Mcdaniel, Adv. Catal. 33 (1985) 47.Google Scholar
  7. 7.
    G. Ghiotti, E. Garrone and A. Zecchina, J. Mol. Catal. 46 (1985) 61.CrossRefGoogle Scholar
  8. 8.
    W. Hill and G. Öhlmann, J. Catal. 123 (1990) 147.CrossRefGoogle Scholar
  9. 9.
    A. Cimino, D. Cordisch, S. Febbraro, D. Gazzoli, V. Indovina, M. Occhiuzzi and M. Valigi, J. Mol. Catal. 55 (1989) 23.CrossRefGoogle Scholar
  10. 10.
    T. Yamaguchi, M. Tan-No and K. Tanabe, “Preparation of Catalysts V” (Elsevier, Amsterdam, 1991) 567.Google Scholar
  11. 11.
    M. Y. He and J. G. Ekerdt, J. Catal. 90 (1984) 17.CrossRefGoogle Scholar
  12. 12.
    T. Maehashi, K. Maruya, K. Domen, K. Aika and T. Onishi, Chem. Lett. (1984) 747.Google Scholar
  13. 13.
    T. Yamaguchi, H. Sasaki and K. Tanabe, Chem. Lett. (1973) 1017.Google Scholar
  14. 14.
    B. H. Davis and P. Ganesan, Ind. Engng. Chem. Prod. Res. Dev. 18 (1979) 191.CrossRefGoogle Scholar
  15. 15.
    T. Iizuka, Y. Tanaka and K. Tanabe, J. Catal. 76 (1982) 1.CrossRefGoogle Scholar
  16. 16.
    P. Turlier, J. A. Dalmon and G. A. Martin, Stud. Surf. Sci. Catal. 11 (1982) 203.CrossRefGoogle Scholar
  17. 17.
    R. Szymanski, H. Charcosset, P. Gallezot, J. Massardier and L. Tournayan, J. Catal. 97 (1986) 366.CrossRefGoogle Scholar
  18. 18.
    J. R. Sohn and H. J. Kim, J. Catal. 101 (1986) 428.CrossRefGoogle Scholar
  19. 19.
    J. R. Sohn, H. W. Kim and J. T. Kim, J. Mol. Catal. 41 (1987) 379.CrossRefGoogle Scholar
  20. 20.
    J. R. Sohn and H. W. Kim, J. Mol. Catal. 52 (1989) 361.CrossRefGoogle Scholar
  21. 21.
    J. R. Sohn and A. Ozaki, J. Catal. 61 (1980) 29.CrossRefGoogle Scholar
  22. 22.
    M. J. Torralvo, M. A. Alario and J. Soria, J. Catal. 86 (1984) 473.CrossRefGoogle Scholar
  23. 23.
    A. Clearifield, Inorg. Chem. 3 (1964) 146.CrossRefGoogle Scholar
  24. 24.
    J. R. Sohn and H. J. Jang, J. Mol. Catal. 64 (1991) 349.CrossRefGoogle Scholar
  25. 25.
    A. Cimino, B. A. Deangelis, A. Luchetti and G. Minelli, J. Catal. 45 (1976) 316.CrossRefGoogle Scholar
  26. 26.
    R. Merryfield, M. Mcdaniel and G. Parks, J. Catal. 77 (1982) 348.CrossRefGoogle Scholar
  27. 27.
    A. R. Gonzalez-Elipe, J. P. Espinos, A. Fernandez and G. Manuera, Appl. Surf. Sci. 45 (1990) 103.CrossRefGoogle Scholar
  28. 28.
    L. P. Hammett and A. J. Deyrup, J. Amer. Chem. Soc. 54 (1932) 2721.CrossRefGoogle Scholar
  29. 29.
    F. G. A. Olah, G. K. S. Prakash and J. Sommer, Science 206 (1979) 13.CrossRefGoogle Scholar
  30. 30.
    M. Itoh, H. Hattori and K. Tanabe, J. Catal. 35 (1974) 225.CrossRefGoogle Scholar
  31. 31.
    V. A, Dzisko, Proceedings of the Third International Congress on Catalysis, Vol 1, No. 19, Amsterdam, (1964).Google Scholar
  32. 32.
    M. Miura, Y. Kubota, T. Iwaki, K. Takimoto and Y. Muraoka, Bull. Chem. Soc. Jpn. 42 (1969) 1476.CrossRefGoogle Scholar
  33. 33.
    E. P. Parry, J. Catal. 2 (1963) 371.CrossRefGoogle Scholar
  34. 34.
    M. C. Kung and H. H. Kung, Catal. Rev. Sci. Engng. 2 (1985) 425.CrossRefGoogle Scholar
  35. 35.
    G. Connell and J. A. Dumesic, J. Catal. 105 (1987) 285.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • Jong Rack Sohn
    • 1
  • Sam Gon Ryu
    • 1
  • Man Young Park
    • 1
  • Young Il Pae
    • 2
  1. 1.Department of Industrial Chemistry, Engineering CollegeKyungpook National UniversityTaeguKorea
  2. 2.Department of Chemistry, National Science CollegeUlsan UniversityUlsanKorea

Personalised recommendations