Journal of Materials Science

, Volume 43, Issue 4, pp 1234–1240 | Cite as

Ultraporous monoliths of alumina prepared at room temperature by aluminium oxidation

  • Jean-Louis VignesEmail author
  • Claude Frappart
  • Thomas Di Costanzo
  • Jean-Claude Rouchaud
  • Leo Mazerolles
  • Daniel Michel


The oxidation of aluminium through a mercury film usually leads to unorganized filaments or fibrous powders of hydrated alumina. Here, we show that the addition of a small amount of silver in the mercury considerably modifies the growth process, and that large sized monoliths can be obtained through a new process. Regular growth can be maintained at a typical rate of 2.1 μm s−1 (∼0.75 cm/h) for several hours. The samples consist of tangled nanometric fibres and have an open porosity of 99%. The influence of various parameters has been studied and optimal conditions for regular growth have been determined. Anhydrous alumina monoliths with a nanometric microstructure and a high-specific area are obtained after thermal treatments that remove water.


Aluminium Plate Porous Alumina Hydrated Alumina Alumina Fiber Liquid Mercury 



The authors are grateful to Mr. Dubos and Mr. Leroy from the Centre de Recherche Pechiney-Alcan (Voreppe, France) and Mr. Fernandez (Alcan, Mercus, France) for supplying us with high-purity and doped aluminium samples.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Jean-Louis Vignes
    • 1
    Email author
  • Claude Frappart
    • 2
  • Thomas Di Costanzo
    • 2
  • Jean-Claude Rouchaud
    • 2
  • Leo Mazerolles
    • 2
  • Daniel Michel
    • 2
  1. 1.Laboratoire d’Ingénierie des Matériaux et des Hautes PressionsUPR 1311 du CNRS et Université Paris 13VilletaneuseFrance
  2. 2.Centre d’Etudes de Chimie MétallurgiqueUPR 2801 du CNRSVitry-sur-Seine CedexFrance

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