
Thinnest possible MOF film separates hydrogen and nitrogen
(Left) A schematic showing the crystallization of a 2d ZIF film by dipping a crystalline substrate in ultradilute precursor solution at room temperature. (Right) Crystal structure of the 2d ZIF, where white, blue and red spheres represent carbon, nitrogen and zinc atoms respectively. Image: Qi Liu, EPFL. Metal-organic frameworks (MOFs) are a class of materials […]