Résumé
The description of the ion transfer over an active interface remains largely unexplored at the molecular level. According to a 2011 study by H. B. de Aguiarin on surfactant at LL interface, many well established theories on molecule conformation or orientation may need to be reexamined in light of new research. These studies on ion transfer at liquid/liquid interface are essential for progressing in fundamental understanding of factors governing the separation process. Our proposal involves pursuing an innovative methodology that was established several years ago at ILL and ESRF. This involves combining complementary experiments (using neutrons and X-rays) with modelling to concentrate on this particular mechanism.
X-ray reflectivity (on ID10) will be used to probe the liquid /liquid interface in order to identify the uranyl cation distribution (U022+) at equilibrium that will driven by extractant molecules (monoamide in oily phase) from the aqueous phase up to the organic phase.