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Article Dans Une Revue Journal of Porous Materials Année : 2007

Condensation enthalpies of n-hexane in micelle-templated mesoporous silicas

Résumé

The isosteric enthalpies of adsorption of n-hexane on ordered mesoporous silica of pore diameter between 3 and 10 nm have been measured. The heat of capillary condensation increases when mesopores are smaller. Capillary condensation of n-hexane in 3 nm mesopores is 20 % more exothermic than the condensation on a flat liquid surface. The results are in good agreement with a model which takes into account the energetic contribution of the interface between the adsorbed layer and the vapour phase

Dates et versions

hal-00170194 , version 1 (06-09-2007)

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Daniel Maldonado, Nathalie Tanchoux, Philippe Trens, Anne Galarneau, Edorado Garrone, et al.. Condensation enthalpies of n-hexane in micelle-templated mesoporous silicas. Journal of Porous Materials, 2007, 14, pp.279-284. ⟨10.1007/s10934-006-9063-5⟩. ⟨hal-00170194⟩
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