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- W2072850206 abstract "Three-dimensional mesoporous SBA-16 silica materials were functionalized with perfluorosulfonic acidic resin Nafion using an impregnation method. The intrinsic polarity of the SBA-16 surface was tuned by grafting ethoxytrimethylsilane on its surface. Characterized by N2-physisorption, X-ray diffraction (XRD), and transmission electron micrographs (TEM), all the materials synthesized exhibited ordered three-dimensional Im3m mesoporous structure. Elemental analysis and water adsorption measured by an intelligent gravimetric analyzer (IGA) showed that trimethylsilane is grafted on the surface by capping the −OHs which enhance the hydrophobicity of SBA-16. Elemental analysis and potentiometric titration showed that Nafion resin was incorporated, revealing a three-dimensional mesoporous strong solid acid with a hydrophobic surface. The catalytic alkylation of isobutane/1-butene was thereafter evaluated on each material under specified conditions and compared with the one-dimensional Nafion/SBA-15 and commercial Nafion silica nanocomposite SAC-13. The catalyst with three-dimensional mesoporous channels was shown to outperform the one with one-dimensional channels. The higher activity of Nafion over methyl modified SBA-16 materials is related to the more hydrophobic surface of support." @default.
- W2072850206 created "2016-06-24" @default.
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- W2072850206 date "2010-07-20" @default.
- W2072850206 modified "2023-09-24" @default.
- W2072850206 title "Alkylation of Isobutane/1-Butene on Methyl-Modified Nafion/SBA-16 Materials" @default.
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- W2072850206 doi "https://doi.org/10.1021/ie1001873" @default.
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