""Weoutline the experimental procedure and data analysis required to study the microscopic structure of confined. liquids, looking in particular at the case of water confined inMCM-41-S-15. The structural results are shown and. commented at two temperatures, namely T=300 K and the proposed temperature of minimum water density. (T=210 K). Our analysis shows that at both temperatureswater does not uniformly occupy the available volume. andmanifests effects due to cohesive failure. This phenomenon has the same effect of density fluctuations on the. neutron diffraction cross section and its temperature dependence determines the decrease of Bragg peak. intensity seen in the Small Angle Neutron Scattering experiments. The radial distribution functions of water are. strongly different fromthose of bulkwater at both temperatures investigated.Moreoverwater layers closer to the. substrate surface strongly interact with the confiningwalls, and their relative orientations are quite distinct from. those of molecules in the middle of the confining volume.""
R., M., Bruni, F., Ricci, M.A. (2011). Structural studies of confined liquids: The case of water confined in MCM-41. JOURNAL OF MOLECULAR LIQUIDS, 159(1), 42-46 [10.1016/j.molliq.2010.05.008].
Structural studies of confined liquids: The case of water confined in MCM-41
BRUNI, Fabio;RICCI, Maria Antonietta
2011-01-01
Abstract
""Weoutline the experimental procedure and data analysis required to study the microscopic structure of confined. liquids, looking in particular at the case of water confined inMCM-41-S-15. The structural results are shown and. commented at two temperatures, namely T=300 K and the proposed temperature of minimum water density. (T=210 K). Our analysis shows that at both temperatureswater does not uniformly occupy the available volume. andmanifests effects due to cohesive failure. This phenomenon has the same effect of density fluctuations on the. neutron diffraction cross section and its temperature dependence determines the decrease of Bragg peak. intensity seen in the Small Angle Neutron Scattering experiments. The radial distribution functions of water are. strongly different fromthose of bulkwater at both temperatures investigated.Moreoverwater layers closer to the. substrate surface strongly interact with the confiningwalls, and their relative orientations are quite distinct from. those of molecules in the middle of the confining volume.""I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
