Optimisation of the surface properties of SBA-15 mesoporous silica for in-situ nanoparticle synthesis
Various methods proposed for preparing nanoparticles within porous matrices involve generally the impregnation of the matrix with a solution of precursors followed by reduction based on chemical, thermal, radiolytic, or photochemical process. In most cases, the amount of solution impregnated is smal...
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| Veröffentlicht in: | Microporous and mesoporous materials 2009-04, Vol.120 (1), p.2-6 |
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| container_title | Microporous and mesoporous materials |
| container_volume | 120 |
| creator | Benoit, Roland Warmont, F. Meynen, V. De Witte, K. Cool, P. Treguer-Delapierre, M. Saboungi, M.-L. |
| description | Various methods proposed for preparing nanoparticles within porous matrices involve generally the impregnation of the matrix with a solution of precursors followed by reduction based on chemical, thermal, radiolytic, or photochemical process. In most cases, the amount of solution impregnated is small and not uniformly distributed in the matrix, with a yield less than 30% and concentrated around the matrix surface. We have developed a novel method for preparing composite materials, combining impregnation under partial vacuum with radiolytic reduction. This method has enabled us to obtain SBA-15 mesoporous silicas with 50–70% impregnation and to control the nanoparticle size. |
| doi_str_mv | 10.1016/j.micromeso.2008.12.017 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1387-1811 |
| ispartof | Microporous and mesoporous materials, 2009-04, Vol.120 (1), p.2-6 |
| issn | 1387-1811 1873-3093 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Bismuth nanoparticles Chemical Sciences Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Material chemistry Mesoporous silica Physical and chemical studies. Granulometry. Electrokinetic phenomena Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Porous materials Radiation chemistry Radiolysis TEM XPS |
| title | Optimisation of the surface properties of SBA-15 mesoporous silica for in-situ nanoparticle synthesis |
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