Crystal structure of submicron-sized sulfur particles using 3D ED obtained in atmospheric conditions.

Lithium-sulfur batteries are a promising candidate for the next generation of rechargeable batteries. Despite extensive research on this system over the last decade, a complete understanding of the phase transformations has remained elusive. Conventional in-situ powder X-ray diffraction has struggled to determine the unit cell and space group of the polysulfides formed during charge and discharge cycles due to the high solubility of these solid products in the liquid electrolyte.

Study of the Activation Process of MOF-74 Using Three-Dimensional Electron Diffraction.

Metal-organic framework (MOF)-74 is known for its effectiveness in selectively capturing carbon dioxide (CO). Especially the Zn and Cu versions of MOF-74 show high efficiency of this material for CO. However, the activation of this MOF, which is a crucial step for its utilization, is so far not well understood.