Co2+@Mesoporous Silica Monoliths: Tailor‐Made Nanoreactors for Confined Soft Chemistry |
| |
| Authors: | Dr Emilie Delahaye Robinson Moulin Dr Merwen Aouadi Virgile Trannoy Dr Patricia Beaunier Dr Giulia Fornasieri Prof Anne Bleuzen |
| |
| Institution: | 1. Université Paris‐Sud, Institut de Chimie Moléculaire et des Matériaux d'Orsay UMR 8182, Equipe de Chimie Inorganique, 91405 Orsay (France), Fax: (+33)?169154754;2. Present address: Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 CNRS ‐ Université de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2 (France);3. Université Pierre et Marie Curie, Laboratoire de Réactivité de Surface UMR 7197, 3 rue Galilée, 94200 Ivry (France) |
| |
| Abstract: | Mesoporous silica monoliths with various ordered nanostructures containing transition metal M2+ cations in variable amounts were elaborated and studied. A phase diagram depicting the different phases as a function of the M2+ salt/tetramethyl orthosilicate (TMOS) and surfactant P123/TMOS ratios was established. Thermal treatment resulted in mesoporous monoliths containing isolated, accessible M2+ species or condensed metal oxides, hydroxides, and salts, depending on the strength of the interactions between the metal species and the ethylene oxide units of P123. The ordered mesoporosity of the monoliths containing accessible M2+ ions was used as a nanoreactor for the elaboration of various transition metal compounds (Prussian blue analogues, Hofmann compounds, metal–organic frameworks), and this opens the way to the elaboration of a large range of nanoparticles of multifunctional materials. |
| |
| Keywords: | cobalt mesoporous materials nanoparticles phase diagrams silica |
|
|
