Article
Interaction of Nitrogen and Hydrocarbon Vapors with Mesoporous Silicas Modified with Perfluorohexylsilane
Protection of Metals & Physical Chemistry of Surfaces
(2014)
Abstract
Using the static method and gas chromatography, the adsorption of nitrogen and hydrocarbons by SBA-15 silicas and commercially available silica gel (SG), as well as changes in the surface properties of these samples as a result of chemical modification with multifunctional perfluorohexylsilane ClSi(CH 3)2(CH2)2(n-C6F 13), are studied. The main factor that causes the high values of thermodynamic characteristics of adsorption on SBA-15 and its modified form is a relatively small pore size. The differences in the polarities of the samples testify to a high concentration of silanol groups on the initial and modified SG.
Keywords
- Silica gel,
- Paraffins,
- Contact angles
Disciplines
Publication Date
May, 2014
DOI
10.1134/S2070205114030137
Citation Information
Alexander Y. Fadeev, Frank Bernardoni, O. Ya. Tayakina, Nataliya K. Shoniya, et al.. "Interaction of Nitrogen and Hydrocarbon Vapors with Mesoporous Silicas Modified with Perfluorohexylsilane" Protection of Metals & Physical Chemistry of Surfaces Vol. 50 Iss. 3 (2014) p. 304 - 311 Available at: http://works.bepress.com/alexander_fadeev/9/