Infrared Evidence for Hoffman Reaction During Calcination of Surfactant-Templated Silica Films and Analysis of the Resulting Surface Sites |
| |
Authors: | Berquier Jean-Marc Nael Pascal Jupille Jacques Jacquiod Catherine |
| |
Institution: | (1) CNRS-Saint-Gobain, Surface du Verre et Interfaces, 39 quai Lucien Lefranc, 93303 Aubervilliers Cedex, France |
| |
Abstract: | Fourier Transform Infrared transmission spectroscopy is used to characterize surfactant-templated silica films on glass. The calcination process is followed in situ and evidence for the removal of the surfactant along the Hoffman reaction is given. Once calcined, the surface of the pores of the mesoporous films is proven by deuteration experiment to be hydroxylated. Bands are attributed to isolated and hydrogen-bonded silanols. Silylation reaction with hexamethyldisilazane only occurs with isolated silanol groups. |
| |
Keywords: | mesoporous materials thin film infrared spectroscopy |
本文献已被 SpringerLink 等数据库收录! |