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

Adsorption of Benzene in the Cation-Containing MOFs MIL-141

Thomas Devic
Christian Serre

Résumé

The adsorption of benzene in the cation containing MOF MIL-141(Cs) was first explored by manometry measurements coupled with Monte Carlo simulations. This joint experimental-modeling approach demonstrates that this solid shows a high affinity for this guest molecule that does not result from a direct interaction between benzene and Cs+ cations in contrast to what is commonly observed in zeolites. This behavior was attributed to a high confinement degree of Cs+ which prevents any cation de-trapping upon adsorption as revealed by Dielectric Relaxation Spectroscopy and Molecular Dynamics simulations. This peculiar adsorption behavior is further discussed when one considers the other alkali extra-framework cations including Li+, Na+, K+ and Rb+.
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Dates et versions

hal-00919050 , version 1 (16-12-2013)

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Arnaud Planchais, Sabine Devautour-Vinot, Simon Giret, Fabrice Salles, Philippe Trens, et al.. Adsorption of Benzene in the Cation-Containing MOFs MIL-141. Journal of Physical Chemistry C, 2013, 117, pp.19393-19401. ⟨10.1021/jp404474h⟩. ⟨hal-00919050⟩
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