Abstract
Technological needs for gas separation is being increased to date because of the environment and energy crisis of the current world. Porous coordination compounds (PCCs) or metal organic frameworks (MOFs) have recently attracted significant attention due to their potential in gas capture/separation applications. Their porous structures (e.g. pore and window sizes) as well as affinities to the gas molecules can be designed by the selection of chemical constituents (organic ligands and metal ions), which allow a variety of PCCs used for separations of various molecules in gas or liquid phase. In gas separation applications, PCCs have been used not only as adsorbents but also as solid membranes. Recently, PCC/polymer hybrid is emerging as a new strategy to realize PCC–based membranes with a sort of flexibility and processability. In this review, we highlight gas separation technique using PCCs and introduce emerging approaches towards PCC–based flexible membranes.
