Artículo
Development and thermal evolution of silver clusters in hybrid organic–inorganic sol–gel coatings
Fecha de publicación:
09/2011
Editorial:
Elsevier Science
Revista:
Surface And Coatings Technology
ISSN:
0257-8972
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A silver doped hybrid organic-inorganic sol-gel coating was developed through the hydrolytic condensation of tetraethoxysilane (TEOS) and methyl-triethoxysilane (MTES). Silica nanoparticles were added in order to give a mechanical reinforcement and silver nitrate as the supplier of Ag+ ions, which have a potential effect as a biocide component. Synthesis of precursor sol and the evolution of silver clusters in the whole process were analyzed through Attenuated Total Reflectance Fourier Transformed Infrared spectroscopy (ATR-FTIR) and UV-visible spectroscopy. A high thermal sensitivity of sub-nanometric silver particles was determined by Small Angle X-ray Scattering (SAXS) carrying to formation of higher agglomerates or silver nanoparticles. Lixiviation tests show long-term and gradual silver releasing without worsening of the structural integrity of coatings.
Palabras clave:
Silver Clusters
,
Sol-Gel
,
Biocide Coatings
,
Saxs Fitting
,
Silver Release
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Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Procaccini, Raul Ariel; Cere, Silvia; Pellice, Sergio Antonio; Development and thermal evolution of silver clusters in hybrid organic–inorganic sol–gel coatings; Elsevier Science; Surface And Coatings Technology; 205; 23-24; 9-2011; 5464-5469
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