Tunable pore network of MnCo-Prussian Blue Analogue (PBA) for separation of Xe and Kr

In this work, we will explore nano-porous single crystals of Mn[Co(CN)6]2/3 Prussian Blue Analogue (Mn[Co] PBA) with three distinct pore networks as molecular sieves for separation of xenon (Xe) and krypton (Kr). The pores in PBAs are defined by the vacancies of Co(CN)6 units and have the size of one to two kinetic diameters of Kr and Xe, almost optimal for separation purpose. Our aim is twofold. First we will study the efficiency of Xe and Kr separation as a function of local structure of the Mn[Co] PBA. Second, we will use a novel method to study the absorption site of Kr and Xe and the induced relaxation of the host lattice by observing the change in single crystal diffuse scattering of the material.