Difference between revisions of "Diffusion at interfaces"

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[[Diffusion]] at the [[Gas-liquid_phase_transitions | liquid-vapor interface]] is both interesting
 
[[Diffusion]] at the [[Gas-liquid_phase_transitions | liquid-vapor interface]] is both interesting
and controversial.
+
and controversial. The very definition of particles "at" the interface is difficult. The diffusion
 
+
coefficient will in this case be a diagonal tensor; two of its elements are equal and correspond
 +
to parallel diffusion (along the interface), the third one corresponds to normal, or perpendicular
 +
diffusion (across the interface). Since the particles are continuously leaving and entering
 +
the interfacial region, it is also important to study this dynamical process by, e.g., the
 +
[[residence time]].
  
 
See, specially Liu et al. []
 
See, specially Liu et al. []

Revision as of 13:57, 4 December 2007

Diffusion at the liquid-vapor interface is both interesting and controversial. The very definition of particles "at" the interface is difficult. The diffusion coefficient will in this case be a diagonal tensor; two of its elements are equal and correspond to parallel diffusion (along the interface), the third one corresponds to normal, or perpendicular diffusion (across the interface). Since the particles are continuously leaving and entering the interfacial region, it is also important to study this dynamical process by, e.g., the residence time.

See, specially Liu et al. []

Systems

pure system Ref
TIP4P/FQ Water [ ]
ST-2 Water [ ]
SPC/E Water [ ]
Dimethyl sulfoxide [ ]
Ethanol [ ]

Mixtures:

mixture Ref
two inmiscible LJs [], []
water/1,2-dichloroethane []
water/nitrobenzene []
surfactants on water []
ions at surfaces []


Confined fluids:

system Ref
water on surfaces []
LJ on solid []


Related systems include:

system Ref
water diffusion across chanels []

References

  1. M. Meyer, M. Mareschal, and M. Hayoun "Computer modeling of a liquid–liquid interface" J. Chem. Phys. 89 pp. 1067-1073 (1988)
  2. R. Michael Townsend and Stuart A. Rice "Molecular dynamics studies of the liquid–vapor interface of water" J. Chem. Phys. 94 pp. 2207-2218 (1991)
  3. Ilan Benjamin "Theoretical study of the water/1,2-dichloroethane interface: Structure, dynamics, and conformational equilibria at the liquid–liquid interface" J. Chem. Phys. 97 pp. 1432-1445 (1992)
  4. Song Hi Lee and Peter J. Rossky "A comparison of the structure and dynamics of liquid water at hydrophobic and hydrophilic surfaces—a molecular dynamics simulation study" J. Chem. Phys. 100 pp. pp. 3334-3345 (1994)
  5. R. S. Taylor, L. X. Dang, and B. C. Garrett "Molecular Dynamics Simulations of the Liquid/Vapor Interface of SPC/E Water" J. Phys. Chem. 100, 11720 (1996)
  6. Tsun-Mei Chang and Liem X. Dang "Recent Advances in Molecular Simulations of Ion Solvation at Liquid Interfaces" Chem. Rev. 106 pp 1305 - 1322 (1996)
  7. Michael, D. Benjamin "Molecular dynamics simulation of the water/nitrobenzene interface", Journal of Electroanalytical Chemistry 450 p.335-345, (1998)
  8. Sanjib Senapati "A molecular dynamics simulation study of the dimethyl sulfoxide liquid–vapor interface"J. Chem. Phys. 117 pp. 1812-1816 (2002)
  9. Ramona S. Taylor and Roseanne L. Shields "Molecular-dynamics simulations of the ethanol liquid–vapor interface" J. Chem. Phys. 119 pp. 12569-12576 (2003)
  10. Jörn B. Buhn, Philippe A. Bopp, and Manfred J. Hampe "A molecular dynamics study of a liquid–liquid interface: structure and dynamics" Fluid Phase Equilibria 224 pp. 221-230 (2004)
  11. Pu Liu, Edward Harder, and B. J. Berne "Hydrogen-Bond Dynamics in the Air-Water Interface" J. Phys. Chem. B, 109 (7) pp 2949 - 2955 (2005)
  12. Vincent J. van Hijkoop, Anton J. Dammers, Kourosh Malek, and Marc-Olivier Coppens "Water diffusion through a membrane protein channel: A first passage time approach" J. Chem. Phys. 127 085101 (2007)
  13. J. A. Thomas and A. J. H. McGaughey "Effect of surface wettability on liquid density, structure, and diffusion near a solid surface" J. Chem. Phys. 126 034707 (2007)
  14. Javier Rodriguez and Daniel Laria "Computer simulations of catanionic surfactants adsorbed at air/water interfaces. II. Full coverage"J. Chem. Phys. 127 124704 (2007)