Skip to main content
SpringerLink
Log in

Calorimetric Characterization of Surface Reactivity of Supported Ga2O3 Catalysts

  • Published:
Journal of Thermal Analysis and Calorimetry Aims and scope Submit manuscript

Abstract

The surface properties of supported gallium oxide catalysts prepared by impregnation of various supports (γ-Al2O3, SiO2, TiO2, ZrO2) were investigated by adsorption microcalorimetry, using ammonia and water as probe molecules. In the case of acidic supports (γ-Al2O3, ZrO2, TiO2), the acidic character of supported gallium catalysts always decreased in comparison with gallium-free supports; on very weakly acidic SiO2, new acidic centers were created when depositing Ga2O3. The addition of gallium oxide decreased the hydrophilic properties of alumina, titania and zirconia, but increased the amount of water adsorbed on silica. The catalytic performances in the selective catalytic reduction of NO by C2H4 in excess oxygenwere in the order Ga/Al2O3>Ga/TiO2>Ga/ZrO2>>Ga/SiO2. This order is more related to the quality of the dispersion of Ga2O3 on the support than to the global acidity of the solids.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Y. Li and J. N. Armor, J. Catal., 145 (1994) 1.

    Article  CAS  Google Scholar 

  2. M. Guisnet and N. S. Gnep, Appl. Catal., 146 (1996) 33.

    Article  CAS  Google Scholar 

  3. K. Shimizu, A. Satsuma and T. Hattori, Appl. Catal. B, 16 (1998) 319.

    Article  CAS  Google Scholar 

  4. M. Haneda, Y. Kintaichi and H. Hamada, Catal. Today, 54 (1999) 391.

    Article  CAS  Google Scholar 

  5. K. Shimizu, M. Takamatsu, K. Nishi, H. Yoshida, A. Satsuma and T. Hattori, Chem. Commun., (1996) 1827.

  6. K. Nishi, K. Shimizu, M. Takamatsu, H. Yoshida, A. Satsuma, T. Tanaka, S. Yoshida and T. Hattori, J. Phys. Chem. B, 102 (1998) 10190.

    Article  CAS  Google Scholar 

  7. K. Shimizu, M. Takamatsu, K. Nishi, H. Yoshida, A. Satsuma, T. Tanaka, S. Yoshida and T. Hattori, J. Phys. Chem. B, 103 (1999) 1542.

    Article  CAS  Google Scholar 

  8. T. Maunula, Y. Kintaichi, M. Inaba, M. Haneda, K. Sato and H. Hamada, Appl. Catal. B, 15 (1998) 291.

    Article  CAS  Google Scholar 

  9. M. Haneda, Y. Kintaichi and H. Hamada, Appl. Catal. B, 20 (1999) 289.

    Article  CAS  Google Scholar 

  10. M. Haneda, Y. Kintaichi and H. Hamada, Catal Lett., 55 (1998) 47.

    Article  CAS  Google Scholar 

  11. M. Haneda, Y. Kintaichi, H. Shimada and H. Hamada, J. Catal., 192 (2000) 137.

    Article  CAS  Google Scholar 

  12. A. Auroux, Topics Catal., 4 (1997) 71.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. IRC, CNRS, 2 avenue Albert Einstein, 69626, Villeurbanne Cedex, France

    A. L. Petre & A. Auroux

  2. Spl. Independentei 202, 77208, Bucharest, Romania

    A. L. Petre, M. Caldararu & N. I. Ionescu

  3. Dipartimento di Chimica Fisica ed Elettrochimica, Universita di Milano, Via Golgi 19, 20133, Milano, Italy

    A. Gervasini

Authors
  1. A. L. Petre
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Auroux
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. Gervasini
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. M. Caldararu
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. N. I. Ionescu
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Petre, A.L., Auroux, A., Gervasini, A. et al. Calorimetric Characterization of Surface Reactivity of Supported Ga2O3 Catalysts. Journal of Thermal Analysis and Calorimetry 64, 253–260 (2001). https://doi.org/10.1023/A:1011557601344

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1011557601344

Search

Navigation