Rate theory on water exchange in aqueous uranyl ion

Structure and dynamics of the molten alkali-chloride salts from an X-ray, simulation, and rate theory perspective

Molten salts are of great interest as alternative solvents, electrolytes, and heat transfer fluids in many emerging technologies.

Microscopic Behaviors of Tri- n-Butyl Phosphate, n-Dodecane, and Their Mixtures at Air/Liquid and Liquid/Liquid Interfaces: An AMBER Polarizable Force Field Study

In solvent extraction processes for recovering metal ions from used nuclear fuel, as well as other industrial applications, a better understanding of the metal complex phase transfer phenomenon would greatly aid ligand design and process optimization. We have approached this challenge by utilizing the classical molecular dynamics simulations technique to gain visual appreciation of the vapor/liquid and liquid/liquid interface between tri- n-butyl phosphate (TBP) and n-dodecane with air and water. In this study, we successfully reparameterized polarizable force fields for TBP and n-dodecane that accurately reproduced several of their thermophysical properties such as density, heat of vaporization, and dipole moment. Our models were able to predict the surface and interfacial tension of different systems when compared to experimental results that were also performed by us. Through this study, we gained atomistic understanding of the behaviors of TBP and n-dodecane at the interface against air and water, useful in further computational studies of such systems. Finally, our studies indicate that the initial configuration of a simulation may have a large effect on the final result.

A molecular dynamics investigation of actinyl–ligand speciation in aqueous solution

Actinyl ions (AnO₂ⁿ⁺), the form in which actinides are commonly found in aqueous solution, are important species in the nuclear fuel cycle.