Thermodiffusional transport of electrolytes in compact clays - Archive ouverte HAL
Article Dans Une Revue Journal of Colloid and Interface Science Année : 2006

Thermodiffusional transport of electrolytes in compact clays

M. Rosanne
  • Fonction : Auteur
  • PersonId : 848254
M. Paszkuta
  • Fonction : Auteur
  • PersonId : 848255
P.M Adler
  • Fonction : Auteur
  • PersonId : 839731

Résumé

The macroscopic Soret coefficient ST was measured for three porous media, namely mica, glass powder, and natural compact clay. At a mean temperature of Click to view the MathML source and with NaCl, ST for mica and glass powder was found to be equal to (3.1±0.7)×10−3 K−1 and close to values for a free medium in agreement with theoretical predictions which are obtained under the assumption that the pressure gradient and the electric field are negligible on the pore scale. The main result is that for clay ST was found five times larger, presumably because of extra couplings with electrical phenomena. This latter measurement was confirmed by an independent technique based on the membrane potential.

Dates et versions

hal-00270712 , version 1 (07-04-2008)

Identifiants

Citer

M. Rosanne, M. Paszkuta, P.M Adler. Thermodiffusional transport of electrolytes in compact clays. Journal of Colloid and Interface Science, 2006, 299 (2), pp.797-805. ⟨10.1016/j.jcis.2006.03.002⟩. ⟨hal-00270712⟩
51 Consultations
0 Téléchargements

Altmetric

Partager

More