Structural characterization of nanosized silica spheres |
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| Affiliation: | 1. Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense de Madrid, Pza. Ramon y Cajal, s/n, 28040 Madrid, Spain;2. Departamento de Química, Facultad de Ciencias, Universidad de las Islas Baleares, 07122 Palma de Mallorca, Spain;3. Unidad de Difracción de Rayos X, Facultad de Farmacia, 28040 Madrid, Spain;4. Departamento de Física de la Materia Condensada, Facultad de Física, Universidad de Sevilla, 41012 Sevilla, Spain;5. Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain |
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| Abstract: | Silica nanospheres with wide applications on chemistry have been synthesized using the Stöber method and have been modified with several organic functional groups by post-synthesis reaction in anhydrous environments. The surface analysis of the silica nanosized spheres leads to low surface area values and large skeletal densities, pointing out to dense nanospheres. High-resolution transmission electron microscopy (HRTEM) and small-angle X-ray scattering (SAXS) prove the microstructure level of the surface porosity that is clearly affected by the organic functionalization. |
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