Journal of Sol-Gel Science and Technology

, Volume 41, Issue 3, pp 299–311 | Cite as

Real sol-gel synthesis of catalytically active aluminium fluoride

  • Stephan Rüdiger
  • Gehan Eltanany
  • Udo Groß
  • Erhard Kemnitz


Amorphous AlF3 prepared via an anhydrous sol-gel synthesis route exhibits high surface area and Lewis acidity far beyond those known for crystalline AlF3 phases. Its catalytic properties are comparable to those of SbF5. Basis of its unusual properties is a sol-gel fluorination with anhydrous HF in organic solvents yielding first a wet Al-F-sol-gel, which can be dried and eventually post-fluorinated. All parts of the synthesis route were thoroughly investigated. The results of these investigations together with detailed analysis of the Al-F-materials obtained are reported and discussed.


Sol-gel fluorination Hydrogen fluoride Aluminium fluoride 


  1. 1.
    Kemnitz E, Groß U, Rüdiger St, Shekar CS (2003) Angew Chem Int Ed 42:4251CrossRefGoogle Scholar
  2. 2.
    Kemnitz E, Groß U, Rüdiger St, EP 04700458.5Google Scholar
  3. 3.
    Rüdiger St, Groß U, Feist M, Prescott HA, Shekar SC, Troyanov SI, Kemnitz E (2005) J Mater Chem 15:588CrossRefGoogle Scholar
  4. 4.
    Murthy JK, Groß U, Rüdiger St, Kemnitz E, Winfield JM (2006) J Solid State Chem 179:739CrossRefGoogle Scholar
  5. 5.
    Ahrens M, Scholz G, Feist M, Kemnitz E (2006) Solid State Sci 8:798CrossRefGoogle Scholar
  6. 6.
    Murthy JK, Groß U, Rüdiger St, Kemnitz E (2004) Applied Catal A 278:133CrossRefGoogle Scholar
  7. 7.
    Murthy JK, Groß U, Rüdiger St, Ünveren E, Unger W, Kemnitz E (2005) Applied Catal A 282:85CrossRefGoogle Scholar
  8. 8.
    Murthy JK, Groß U, Rüdiger St, Ünveren E, Kemnitz E (2004) J Fluorine Chem 125:937CrossRefGoogle Scholar
  9. 9.
    Kemnitz E, Groß U, Rüdiger St, EPA 04008229Google Scholar
  10. 10.
    Murthy JK, Groß U, Rüdiger St, Rao VV, Kumar VV, Wander A, Bailey CL, Harrison NM, Kemnitz E (2006) J Phys Chem B 110:8314CrossRefGoogle Scholar
  11. 11.
    Kemnitz E, Groß U, Rüdiger St, Scholz G, Heidemann D, Troyanov SI, Morosov IV, Lemée-Cailleau M-H (2006) Solid State Sci doi:10.1016/j.solidstatesciences.2006.07.008Google Scholar
  12. 12.
    Sakka S (ed) (2005) Handbook of sol-gel science and technology. Kluwer Academic Publishers, DordrechtGoogle Scholar
  13. 13.
    Bucsi I, Török B, Marco AI, Rasul G, Surya Prakash GK, Olah GA (2002) J Am Chem Soc 124:7728CrossRefGoogle Scholar
  14. 14.
    Meerwein H (1965) In: Muller E (ed) Houben-Weyl, Methoden der organischen Chemie, vol IV/3. Thieme, Stuttgart, p 329Google Scholar
  15. 15.
    Prescott HA, Li ZJ, Kemnitz E, Lieske JH (2005) J Mater Chem 15:4616CrossRefGoogle Scholar
  16. 16.
    Thong NH, Rüdiger St, Groß U, Kemnitz E, in preparationGoogle Scholar
  17. 17.
    Prescott HA, Fechtelkord M, Groß U, Rüdiger St, Troyanov SI, Feist M, Kemnitz E (2004) paper presented at Gemeinsame Jahrestagung der Deutschen Gesellschaft für Kristallographie e.V. und der Deutschen Gesellschaft für Kristallwachstum und Kristallzüchtung e.V., JenaGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Stephan Rüdiger
    • 1
  • Gehan Eltanany
    • 1
  • Udo Groß
    • 1
  • Erhard Kemnitz
    • 1
  1. 1.Institute of ChemistryHumboldt-University BerlinBerlinGermany

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