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Article Dans Une Revue Microporous and Mesoporous Materials Année : 2011

A solvent-free photochemical route for the preparation of mesoporous inorganic films

Résumé

An alternative to the Evaporation Induced Self Assembly (EISA) method is described as a fast and simplified approach towards mesoporous silica films. The sol-gel process is photochemically triggered with the aid of photoacid generator (PAG), thereby making mesostructuration independent of film deposition conditions, solvent evaporation and complex chemistry associated with a silica sol. The developed solvent-free synthesis uses non-ionic poly(ethylene oxide)-based surfactants and polydimethoxysiloxane, affording after UV irradiation a film with a wormhole porous framework, and a uniform pore size distribution. The disordered mesostructure was characterized by X-ray diffraction, N-2 adsorption, Si-29 solid-state NMR and transmission electron microscopy. (c) 2011 Elsevier Inc. All rights reserved.

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hal-04386674 , version 1 (10-01-2024)

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Héloïse de Paz, Abraham Chemtob, Celine Croutxe-Barghorn, Séverinne Rigolet, Bénédicte Lebeau. A solvent-free photochemical route for the preparation of mesoporous inorganic films. Microporous and Mesoporous Materials, 2011, 151, pp.88-92. ⟨10.1016/j.micromeso.2011.10.045⟩. ⟨hal-04386674⟩
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