Accéder directement au contenu Accéder directement à la navigation
Communication dans un congrès

H/D isotopic interpretation of hydration isotherms

Abstract : Various methods have been developped since years for describing the poral distribution of porous materials from hydration isotherms measurements. The most well known is the BJH method, which relies on a model of cylindric pores. More recently, methods (e.g. Or and Tuller, 1999) consider pores with various geometries (slit pores, pores with polygonal section), providing great improvements in the description of hydration isotherms and/or retention curves. However, these approaches are based on a series of assumptions (constant molar volume of hydration water, a priori geometrical characteristics of pores, no contact angle between adsorption film and capillary meniscus, etc). As a result, determination of the amount of water available for chemical reactions remains qualitative in such systems. Richard et al. (2007) have measured the H/D isotopic fractionation factor (
Liste complète des métadonnées

https://hal-brgm.archives-ouvertes.fr/hal-00578068
Contributeur : Arnault Lassin <>
Soumis le : vendredi 18 mars 2011 - 11:36:49
Dernière modification le : mercredi 16 septembre 2020 - 16:57:29

Identifiants

  • HAL Id : hal-00578068, version 1

Collections

Citation

Arnault Lassin, Hélène Gailhanou, Thierry Richard, Mohamed Azaroual. H/D isotopic interpretation of hydration isotherms. Goldschmidt Conference 2007, Aug 2007, Cologne, Germany. ⟨hal-00578068⟩

Partager

Métriques

Consultations de la notice

119