Zeolitic imidazolate framework membranes for gas separations: Current state-of-the-art, challenges, and opportunities

Advanced porous materials with uniform molecular scale apertures are highly desirable for energy related separations. Among them, zeolitic imidazolate frameworks (ZIFs) have received significant interest as separation membranes owing to their narrow that can target small gases. ZIFs exhibit excellent gas transport properties, such unprecedentedly high C3H6 permeability and remarkable C3H6/C3H8 selectivity, inaccessible by other inorganic polymers. Deposition of ultrathin on substrates form gas-selective barriers has been a major focus in this area. There development the synthesis ZIF In review, we present summary current state-of-the-art membrane processing highlight unique microstructural features prepared membranes. Following this, discuss level performances these advanced focusing three emerging/unsolved applications. Finally, provide our perspectives future research directions