New ways of probing surface nuclear relaxation and microdynamics of water and oil in porous media.
The microdynamics of water and oil in macroporous media with SiO2 or CaCO3 surfaces has been probed at various temperatures by magnetic field-cycling measurements of spin-lattice relaxation rates. These measurements and an original theory of surface diffusion allow us to obtain surface dynamical parameters such as surface correlation times, residence times and diffusion coefficients. A coefficient of affinity of the liquids for the pore surface is deduced.
Godefroy
S
S
Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, 91128, Palaiseau, France
Korb
J P
JP
Fleury
M
M
Bryant
R G
RG
D002119:Calcium Carbonate; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009821:Oils; D055585:Physical Phenomena; D010825:Physics; D016062:Porosity; D012822:Silicon Dioxide; D014867:Water
D009821:Oils; D014867:Water; D012822:Silicon Dioxide; D002119:Calcium Carbonate