Comparative study of the sulfur loss in the xerogel and aerogel sulfated zirconia calcined at different temperatures: effect on the n-hexane isomerization

Mejri, Imen;Younes, M.K.;Ghorbel , A.;Eloy, Pierre;Gaigneaux, Eric
(2006) Scientific Bases for the Preparation of Heterogeneous Catalysts — ISBN: [978-0-444-52827-8], p. 953-960, published

Files

No attached file found for this publication.

Details

Authors
  • Mejri, ImenUCLouvain
    Author
  • Younes, M.K.Université de Tunis
    Author
  • Ghorbel , A.Université de Tunis
    Author
  • Eloy, PierreUCLouvain
    Author
  • Gaigneaux, Ericorcid-logoUCLouvain
    Author
Abstract
(en) Aerogel and xerogel sulfated zirconia exhibit different structure and texture at various calcination temperatures. At 560°C the aerogel develops only the tetragonal phase, whereas the xerogel contains both the monoclinic and the tetragonal phases. Heating at higher temperature causes the transition of the tetragonal phase into the monoclinic one for all the samples by loss of sulfur, but the tetragonal phase remains significantly more stable in the aerogel. Characterization indicates that the loss of sulfur at higher temperature is easier for the xerogel. The ability of the aerogel to retain sulfur at higher temperature explains its better stability and confers it a good catalytic performance in the n-hexane isomerization reaction
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Mejri, I., Younes, M. K., Ghorbel, A., Eloy, P., & Gaigneaux, E. (2006). Comparative study of the sulfur loss in the xerogel and aerogel sulfated zirconia calcined at different temperatures: effect on the n-hexane isomerization. In E.M. Gaigneaux, M. Devillers, D.E. De Vos, S. Hermans, P.A. Jacobs, J.A. Martens, P. Ruiz (ed.), Scientific Bases for the Preparation of Heterogeneous Catalysts (p. p. 953-960). Elsevier. https://hdl.handle.net/2078.5/222161