STRUCTURE AND DYNAMICS OF A LIQUID LAYER IN PROXIMITY TO A NANOPOROUSSOLID-SURFACE

We demonstrate the potential of nuclear relaxation for studying the mi crodynamics of molecular liquids in confined and porous systems, with particular emphasis on solid-liquid interfaces. We have observed both a reduction and an anisotropy in the molecular reorientation dynamics of liquids on nanometric pore surfaces under different temperature and pressure conditions. The magnetic field cycling NMR technique has als o allowed us to observe abnormal diffusion of water among glass beads with calibrated pores.