New insights into the initial steps of the formation of SBA-15 materials: an in situ small angle neutron scattering investigation

Marianne Impéror-Clerc (1) , Isabelle Grillo , Andrei Y. Khodakov (2) , D. Durand (3) , Vladimir L. Zholobenko

1 LPS - Laboratoire de Physique des Solides
2 UCCS - Unité de Catalyse et Chimie du Solide - UMR 8181
3 IBBMC - Institut de biochimie et biophysique moléculaire et cellulaire

Time-resolved in situ SANS investigations have provided direct experimental evidence for the three initial steps in the formation of the SBA-15 mesoporous material: an induction period is followed by a shape transformation of the micelles from spherical to cylindrical ones followed by the precipitation of a two-dimensional hexagonal phase.

Domaines: Catalyse

Marianne Impéror-Clerc, Isabelle Grillo, Andrei Y. Khodakov, D. Durand, Vladimir L. Zholobenko. New insights into the initial steps of the formation of SBA-15 materials: an in situ small angle neutron scattering investigation. Chemical Communications, 2006, pp.10.1039/b611208k. ⟨10.1039/b611208k⟩. ⟨hal-00118930⟩