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Article Dans Une Revue Journal of Physical Chemistry C Année : 2013

Confinement of Ter-Butanol Nanoclusters in Hydrophilic and Hydrophobic Silica Nanopores

Aziz Ghoufi
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Denis Morineau
Richard Renou
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Résumé

From hydrogen bonds, tert-butanol molecules self-organize in micelle-like supermolecular clusters in the liquid state. While these nanoclusters have been largely investigated in the bulk phase, the confined situation remains seldom. However, from a relevant combination of neutron scattering and molecular simulation, it has been shown that these clusters persisted under hydrophilic cylindrical confinement [Ghoufi, A.; Hureau, I.; Lefort, R.; Morineau, D. J. Phys. Chem. C, 2011, 115, 17761]. In this work, we provide a structural, dynamic, and dielectric characterization of nanoconfined tert-butanol in both hydrophilic and hydrophobic silica nanopores. Differences between hydrophilic and hydrophobic pores with respect to the bulk phase are correlated to the modulation in the hydrogen-bonding network induced by the nanometric confinement and the chemical nature of the solid surface.
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Dates et versions

hal-00844538 , version 1 (15-07-2013)

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Aziz Ghoufi, Ivanne Hureau, Denis Morineau, Richard Renou, Anthony Szymczyk. Confinement of Ter-Butanol Nanoclusters in Hydrophilic and Hydrophobic Silica Nanopores. Journal of Physical Chemistry C, 2013, 117 (29), pp.15203-15212. ⟨10.1021/jp404702j⟩. ⟨hal-00844538⟩
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