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Why a 1:1 2D Structure Tends to Roll?: A Thermodynamic Perspective

Luc Belloni 1 Antoine Thill 1
1 LIONS - Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : In this chapter, the equilibrium and thermodynamical properties of imogolite dispersions are analysed at a mesoscopic level of description with theories of self-assembly. The energy of an imogolite architecture results from bending, adhesion, surface and line-tension contributions. In the first part, the phase diagram at zero temperature (pure energy) is constructed that distinguishes between nanotubes and nanoscrolls characterised by different numbers of layers. Then, the entropy of mixing and the total free energy are calculated for mixtures of multilayer proto and nanotube imogolites at equilibrium. The full phase diagram exhibits the composition in the various structures, shapes, lengths, radii and layers as a function of temperature and concentration.
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Submitted on : Tuesday, November 14, 2017 - 10:23:05 AM
Last modification on : Monday, February 10, 2020 - 6:12:48 PM

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Luc Belloni, Antoine Thill. Why a 1:1 2D Structure Tends to Roll?: A Thermodynamic Perspective. Yuan, Peng; Thill, Antoine; Bergaya, Faïza. Developments in Clay Science, elsevier, pp.387-408, 2016, ⟨10.1016/B978-0-08-100293-3.00015-7⟩. ⟨cea-01634452⟩

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