Deposition of nanocomposite coatings on wood using cold discharges at atmospheric pressure
| Autor: | A. Koronai, Luc Stafford, Jacopo Profili, Nicolas Gherardi, O. Levasseur |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Hexamethyldisiloxane Nanocomposite Materials science Atmospheric pressure Scanning electron microscope 02 engineering and technology Surfaces and Interfaces General Chemistry Dielectric barrier discharge 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Surfaces Coatings and Films chemistry.chemical_compound chemistry Ellipsometry 0103 physical sciences Materials Chemistry Fourier transform infrared spectroscopy Composite material 0210 nano-technology Spectroscopy |
| Zdroj: | Surface and Coatings Technology. 309:729-737 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2016.10.095 |
| Popis: | This work examines the synthesis of nanocomposite thin films on wood (sugar maple, Acer saccharum , Marsh) surfaces via a one-step process in an atmospheric pressure dielectric barrier discharge (DBD). More specifically, ZnO-SiO 2 nanocomposite coatings are obtained from the atomization in the DBD reactor operated in N 2 /N 2 O (Townsend discharge) of a stable colloidal suspension. This suspension is made of crystalline ZnO nanoparticles (NPs) dispersed in hexamethyldisiloxane (HMDSO) and pentane (Pe). Scanning electron microscopy (SEM) combined with energy dispersive X-ray spectroscopy (EDS) show ZnO agglomerates well embedded into a dense SiO 2 matrix. The chemical composition and the thickness of the matrix is analyzed through Fourier transform infrared spectroscopy (FT-IR) coupled to ellipsometry measurements. SEM further reveals a lumpy morphology; a feature ascribed to the intrinsic roughness of the wood samples. |
| Databáze: | OpenAIRE |
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