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Bourrelly, S., Moulin, B., Rivera, A., Maurin, G., Devautour-Vino, S., Serre, C., Devic, T., Horcajada, P., Vimont, A., Clet, G., Daturi, M., Lavalley, J.-C., Loera-Serna, S., Denoyel, R., Llewellyn, P. L. & Ferey, G. (2010) Explanation of the Adsorption of Polar Vapors in the Highly Flexible Metal Organic Framework MIL-53(Cr). JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 132 9488–9498.
Added by: Richard Baschera (2017-03-01 08:48:23) |
| Type de référence: Article Numéro d'identification (ISBN etc.): {0002-7863} Clé BibTeX: Bourrelly{2010} Voir tous les détails bibliographiques  |
Catégories: HORSIMN Créateurs: Bourrelly, Clet, Daturi, Denoyel, Devautour-Vino, Devic, Ferey, Horcajada, Lavalley, Llewellyn, Loera-Serna, Maurin, Moulin, Rivera, Serre, Vimont Collection: {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY} |
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| Résumé |
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{A comparison of the adsorption of water, methanol, and ethanol polar vapors by the flexible porous chromium(III) terephthalate MIL-53(Cr) was investigated by complementary techniques including adsorption gravimetry, ex situ X-ray powder diffraction, microcalorimetry, thermal analysis, IR spectroscopy, and molecular modeling. The breathing steps observed during adsorption strongly depend on the nature of the vapor. With water, a significant contraction of the framework is observed. For the alcohols, the initial contraction is followed by an expansion of the framework. A combination of IA analysis, X-ray diffraction, and computer modeling leads to the molecular localization of the guest molecules and to the identification of the specific guest-guest and host-guest interactions. The enthalpies of adsorption, measured by microcalorimetry, show that the strength of the interactions decreases from ethanol to water. Differential scanning calorimetry experiments on an EtOH/H(2)O mixture suggest a selective adsorption of ethanol over water.}
Added by: Richard Baschera |