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Chargé de Recherche CNRS

Dufrêche Jean-François
Chargé de Recherche CNRS
Section 13
Tel : +33 1 44 27 22 03
Fax : +33 1 44 27 38 34
Contact : dufreche@ccr.jussieu.fr
Activités scientifiques
Key-words : Smoluchowski, MSA, DFT, dynamique brownienne, réponse linéaire
Enseignements - documentation
Lors de ses deux dernières années d’existence, j’ai été coordinateur du DEA de Matière Condensée, Chimie et Organisation. Cette formation cohabillitée par l’Université Pierre et Marie Curie et dépendant de l’école doctorale de chimie-physique, proposait depuis une dizaine d’année une formation dans le domaine de la matière molle et des fluides complexes, envisagée d’un point de vue physico-chimique.
J’ai en outre assuré le cours de méthodes pratiques de physique statistique. Il s’agissait de montrer comment les concepts et les méthodes introduites dans les cours de thermodynamique statistique (assurés par P. Turq et L. Belloni) permettent d’étudier d’un point de vue pratique la matière condensée. Le recueil d’exercice ainsi qu’un résumé du cours se trouve ici.
The Smoluchowski-MSA theory of electrolytes proposed by our laboratory is able to predict the various transport and equilibrium ion quantities of dissociated electrolyte solutions up to 1-2 mol.L-1. The programs are given there.

Publications
[27] Influence of Ion Properties on the Equilibrium and Transport Properties of Electrolyte Solutions
Steven Van Damme, Jean-François Dufrêche, and Johan Deconinck
J. Phys. Chem. B, 110, 1015-1019 (2006)
[26] An analytical model for probing ion dynamics in clays with broadband dielectric spectroscopy
B. Rotenberg, A. Cadène, J.-F. Dufrêche, Serge Durand-Vidal, J.-C. Badot, P. Turq,
J. Phys. Chem. B, 109, 15548-15557 (2005)
[25] Bias voltage dependant electrochemical impedance spectrometry of p- and n-type of silicon substrates
M. Chemla, J.-F. Dufrêche, I. Darolles, F. Rouelle, D. Devilliers, S. Petitdidier, D. Lévy,
Electrochimca Acta, 51, 665-676 (2005)
[24] Analytical theories of transport in concentrated electrolyte solutions from the MSA approximation (Feature article)
J.-F. Dufrêche, O. Bernard, S. Durand-Vidal, P. Turq,
J. Phys. Chem. B, 109, 9873-9884 (2005)
[23] Frequency-dependent dielectric permittivity of salt-free charged lamellar systems
B. Rotenberg, J.-F. Dufrêche, P. Turq,
J. Chem. Phys., 123, 154902 (2005)
[22] Lanthanide salts solutions : Representation of osmotic coefficients within the binding mean spherical approximation
A. Ruas, P. Moisy, J.-P. Simonin, O. Bernard, J.-F. Dufrêche, P. Turq,
J. Phys. Chem. B, 109, 5243-5248 (2005)
[21] Molecular hydrodynamics for electro-osmosis in clays : from Kubo to Smoluchowski
J.-F. Dufrêche, V. Marry, N. Malikova, P. Turq,
J. Mol. Liq., 118, 145-153 (2005)
[20] Temperature effect in a montmorillonite clay at low hydration-microscopic simulation
N. Malikova , V. Marry, J.-F. Dufrêche, C. Simon, P. Turq, E. Giffaut,
Mol. Phys., 102, 1965-1977 (2004)
[19] Transport in electrolyte solutions : are ions Brownian particles ?
J.-F. Dufrêche, O. Bernard, P. Turq,
J. Mol. Liq., 118, 189-194(2005)
[18] Na/Cs montmorillonite : temperature activation of diffusion by simulation
N. Malikova, V. Marry, J.-F. Dufrêche, M. Jardat, P. Turq,
Curr. Opi. Coll. Int. Science, 9, 124-127 (2004)
[17] Equilibrium and electrokinetic phenomena in charged porous media from microscopic and mesoscopic models : electro-osmosis in montmorillonite
V. Marry, J.-F. Dufrêche, M. Jardat, P. Turq,
Mol. Phys., 101, 3111-3119 (2003)
[16] Charged-stabilized colloidal suspensions : Counterion condensation and phase diagrams
J.-F. Dufrêche, T. O. White, J.-P. Hansen,
Mol. Phys., 101, 1741-1759 (2003)
[15] Dynamics and transport in charged porous media
V. Marry, J.-F. Dufrêche, M. Jardat, G. Mériguet, P. Turq, F. Grün
Coll. Surf. A, 222, 147-153 (2003)
[14] Response to “Comment on “Transport equations for concentrated electrolyte solutions : Reference frame, mutual diffusion”” J. Chem. Phys. 118, 8114 (2003)
J.-F. Dufrêche, O. Bernard, M. Jardat, P. Turq,
J. Chem. Phys., 118, 8116-8117 (2003)
[13] Mutual diffusion coefficient of charged particles in the solvent-fixed frame of reference from Brownian dynamics simulations
J.-F. Dufrêche, M. Jardat, T. Olynyk, O. Bernard, P. Turq,
J. Chem. Phys., 117, 3804-3810 (2002)
[12] Ionic self-diffusion in concentrated aqueous electrolyte Solutions
J.-F. Dufrêche, O. Bernard, P. Turq, A. Mukherjee, B. Bagchi,
Phys. Rev. Lett., 88, 095902 (2002)
[11] Mutual diffusion coefficient in concentrated electrolyte solutions
J.-F. Dufrêche, O. Bernard, P. Turq,
J. Mol. Liq., 96, 123-133 (2002)
[10] Transport equations for concentrated electrolyte solutions : Reference frame, mutual diffusion
J.-F. Dufrêche, O. Bernard, P. Turq,
J. Chem. Phys., 116, 2085-2097 (2002)
[9] Ionic dynamics in electrolyte solutions : from models to experimental values
J.-F. Dufrêche, M. Jardat, A.-L. Rollet, P. Turq,
J. Mol. Liq., 96, 113-122 (2002)
[8] Models for electrokinetic phenomena in montmorillonite
J.-F. Dufrêche, V. Marry, O. Bernard, P. Turq,
Coll. and Surf. A, 195, 171-180 (2001)
[7] Multiscale dynamics in ionic media
A.-L. Rollet, M. Jardat, J.-F. Dufrêche, P. Turq, D. Canet
J. Mol. Liq., 92, 53-65 (2001)
[6] Ab initio study of deuterium in the dissociating regime : sound speed and transport properties
J. Clérouin, J.-F. Dufrêche,
Phys. Rev. E., 64, 066406 (2001)
[5] Sedimentation of charged colloids in the gravitational field : Relaxation toward equilibrium
J.-F. Dufreche, J.-P. Simonin, P. Turq,
J. Mol. Liq., 79, 137 (1999).
Actes de congrès
[4] Sedimentation of charged colloids in the gravitational field : Relaxation toward equilibrium
J.F. Dufrêche, J.-P. Simonin, P. Turq,
J. Phys. IV France, 10, Pr5-109 (2000)
[3] Viscosity coefficient of dense fluid hydrogen
J.F. Dufrêche, J.Clerouin,
J. Phys. IV France, 10, Pr5-303 (2000).
[2] Transport properties in ionic media
A.-L. Rollet, M. Jardat, J.-F. Dufrêche, P. Turq, D. Canet
in 2000 Fall Meeting Symposium Proceeding, Mat. Res. Soc. Symp. Proc., 651, T9.5.1-T9.5.6 (2001)
[1] Electrokinetic phenomena in montmorillonite
V. Marry, J.-F. Dufrêche, O. Bernard, P. Turq
in 2000 Fall Meeting Symposium Proceeding, Mat. Res. Soc. Symp. Proc., 651, T7.1.1-T7.1.6 (2001)
Pour plus de renseignements, une notice se trouve ici.