Study of the mechanisms involved in reactive silica
| Autor: | M.H. Tuilier, Frédéric Boinski, Lahcen Khouchaf |
|---|---|
| Přispěvatelé: | École des Mines de Douai (Mines Douai EMD), Institut Mines-Télécom [Paris] (IMT), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)) |
| Rok vydání: | 2010 |
| Předmět: |
[PHYS]Physics [physics]
Materials science Nanostructure Analytical chemistry Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences law.invention Chemical engineering law Transmission electron microscopy Phase (matter) [CHIM]Chemical Sciences General Materials Science Electron microscope 0210 nano-technology Dissolution Environmental scanning electron microscope ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Materials Chemistry and Physics Materials Chemistry and Physics, 2010 |
| ISSN: | 0254-0584 |
| DOI: | 10.1016/j.matchemphys.2010.02.012 |
| Popis: | The microstructure of a heterogeneous SiO2 submitted to a depolymerisation process is studied using Transmission Electron Microscope (TEM), Environmental SEM (ESEM), and X-ray diffraction (XRD). With ESEM the formation of micro domain induced by the dissolution phenomena is shown. XRD shows the formation of a halo that is associated with the formation of amorphous phase. The parameters “position and FWHM” of the halo, enabled us to show the evolution of the disorderly phase when the reaction progresses. The hypothesis of formation of nanoparticles with different structural states was confirmed by the TEM. |
| Databáze: | OpenAIRE |
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