A Novel Green Template for the Synthesis of Mesoporous Silica
| Autor: | Christoph Boettcher, Frank Roelofs, Shangjie Xu, Rainer Haag, Yeping Xu, Gerd Buntkowsky, Thomas Emmler |
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| Rok vydání: | 2008 |
| Předmět: |
Green chemistry
Pore size Magnetic Resonance Spectroscopy Chemistry Organic Chemistry Nanotechnology General Chemistry Nitrogen adsorption Nuclear magnetic resonance spectroscopy Mesoporous silica Silicon Dioxide Environmentally friendly Catalysis Microscopy Electron Transmission Chemical engineering Amphiphile Mesoporous material |
| Zdroj: | Chemistry - A European Journal. 14:3311-3315 |
| ISSN: | 1521-3765 0947-6539 |
| DOI: | 10.1002/chem.200701806 |
| Popis: | Mesoporous pure silicas and functionalized silica with a narrow pore size distribution centered at 3.8 nm were prepared by a novel template, amphiphilic dendritic polyglycerol. The resulting silica materials were characterized by electron microscopy; nitrogen adsorption; (1)H, (13)C, and (29)Si solid-state cross-polarization magic-angle spinning NMR spectroscopy. It was shown that the template could be completely removed from the pure and functionalized silica in an environmentally friendly way by means of a simple water extraction procedure. Furthermore, it was shown that these materials could be easily functionalized, for example, by employing aminopropyl groups. Thus, a new environmentally friendly pathway to this fascinating class of silica material has been opened. |
| Databáze: | OpenAIRE |
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