Nebulization of Nanocolloidal Suspensions for the Growth of Nanocomposite Coatings in Dielectric Barrier Discharges
| Autor: | Nicolas Gherardi, Luc Stafford, Anja Koronai, Jean-Bernard Blaisot, O. Levasseur, Jacopo Profili |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Nanocomposite Polymers and Plastics Atmospheric pressure Analytical chemistry 02 engineering and technology Dielectric Dielectric barrier discharge 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Suspension (chemistry) Chemical engineering Townsend discharge Dynamic light scattering 0103 physical sciences Thin film 0210 nano-technology |
| Zdroj: | Plasma Processes and Polymers. 13:981-989 |
| ISSN: | 1612-8850 |
| DOI: | 10.1002/ppap.201500223 |
| Popis: | The nebulization of colloidal suspensions is analyzed by dynamic light scattering, scanning, and transmission electron microscopies. While primary agglomeration can be important for many nanoparticle-solvent couples, our results indicate that for TiO2 nanoparticles dispersed in water, secondary agglomeration also occurs during nebulization. When nebulization is realized immediately after sustaining a plane-to-plane dielectric barrier discharge at atmospheric pressure, the collection efficiency of TiO2 nanoparticles increases due to the presence of a remanent electric field between the two electrodes. Finally, these findings are used to deposit SiO2–TiO2 nanocomposite thin films by alternating the deposition of dense silica-like layers in a Townsend discharge and the collection of TiO2 nanoparticles through nebulization of the nanocolloidal suspension. |
| Databáze: | OpenAIRE |
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