Study of liquid/liquid interface for heavy ions separation neutron reflectivity and scattering
At the molecular level, the description of the ion transfer through an active interface is still fully opened to exploration. As mentioned in a recent paper on surfactant at LL interface, some general accepted picture of molecular conformation or orientation can be reconsidered when specific studies are carried out [10]. Its study is essential for progressing in fundamental understanding of factors governing the separation process. This is certainly a highly challenging problem that cannot be totally solved in a three year program. However, we propose an original approach coupling complementary experiments and modelling in focusing on this interface specifically. Liquid/liquid interface will be probed by neutron reflectivity (beamtime requested on FIGARO) in order to determine at equilibrium (controlled by chemical potential regulation) the extractant molecule distribution that will allow to extract metal cation from aqueous up to organic phase. In parallel, SANS experiment (on D22) will be performed to characterize nanoaggregation of the extractant molecules in the same thermodynamical conditions.
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DIAT Olivier; FRAGNETO Giovanna; PORCAR Lionel; Ernesto Scoppola and WATKINS Erik. (2013). Study of liquid/liquid interface for heavy ions separation neutron reflectivity and scattering. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1283
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