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Boissière C, Brubach JB, Mermet A, de Marzi G, Bourgaux C, Prouzet E, Roy P. Water Confined in Lamellar Structures of AOT Surfactants: An Infrared Investigation. J Phys Chem B 2002. [DOI: 10.1021/jp012724i] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. Boissière
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
| | - J. B. Brubach
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
| | - A. Mermet
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
| | - G. de Marzi
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
| | - C. Bourgaux
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
| | - E. Prouzet
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
| | - P. Roy
- Institut Européen des Membranes, CNRS-UMR 5635, CNRS, 1919 Route de Mende, F-34293, Montpellier Cedex 5 (France), LURE, CNRS-UMR 130, Bat 209D, Université Paris-sud, F-91405 Orsay Cedex, (France), and CPMA, CNRS-UMR 8611, Bat. 490, Université Paris-sud, F-91405 Orsay Cedex, (France)
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Abstract
Mesoporous silica molecular sieves have been prepared by the hydrolysis of tetraethylorthosilicate in the presence of low-cost, nontoxic, and biodegradable polyethylene oxide (PEO) surfactants, which act as the structure-directing (templating) agents. This nonionic, surfactant-neutral, inorganic-precursor templating pathway to mesostructures uses hydrogen bonding interactions between the hydrophilic surfaces of flexible rod- or worm-like micelles and Si(OC(2)H(5))(4-x)(OH)(x) hydrolysis products to assemble an inorganic oxide framework. Disordered channel structures with uniform diameters ranging from 2.0 to 5.8 nanometers have been obtained by varying the size and structure of the surfactant molecules. Metal-substituted silica and pure alumina mesostructures have also been prepared by the hydrolysis of the corresponding alkoxides in the presence of PEO surfactants. These results suggest that nonionic templating may provide a general pathway for the preparation of mesoporous oxides.
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