FTIR, TEM and NMR Iinvestigations of Stöber Silica Nanoparticles
By V. Sirutkaitis, R. Juškėnas, A. Kareiva. Materials Science, 2004
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In this work, the sol-gel process in non-aqueous system of tetraethylorthosilicate (TEOS) has been investigated. The formation of spherical silica nanoparticles was studied using 1H and 13C NMR, FTIR spectroscopies and TEM. It was demonstrated that FTIR, TEM and 1H NMR can be employed to monitor effectively the conversion of TEOS into insoluble SiO2 from the supersaturation of hydrolyzed monomers. This leads to the formation of colloidal silica primary particles. The optimized sol-gel parameters allow to produce the monodisperse spherical silica particles suitable for the development of technology for antireflection coatings.
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/1c6936f644695ff1363e8d323ce5b43be598c7f8
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In Materials Chemistry
Citations in the corpus
- Oxygenated functionalities enriched MWCNTs decorated with silica coated spinel ferrite – A nanocomposite for potentially rapid and efficient de-colorization of aquatic environment (2020, background): “ThepHofthesuspensionduring coatingprocesswasmaintainedat~10byaddingdropsofammoniumso-lution, which acted as basic catalyst during the reaction [36] and kept on stirring for 3 h at room temperature.”