Synthesis of 2D nanoporous zeolitic imidazolate framework nanosheets for diverse applications

Two-Dimensional Metal–Organic Framework Nanosheets Grown on Carbon Fiber Paper Interwoven with Polyaniline as an Electrode for Supercapacitors

“…Similarly to ZIFs, it has a high surface area, high porosity, and unique cavity. For its 2D morphology, it has a large external surface and a thin layer, which lead to the exposure of more active sites and less diffusion resistance, thus facilitating electron and electrolyte ion transport. , Compared with the 3D ZIF-67 nanoparticle, CFP/ZIF-L and CFP/ZIF-L/PANI have larger BET surface area than CFP/ZIF-67 and CFP/ZIF-67/PANI; this indicates that CFP/ZIF-L/PANI provides more electrochemically active sites and ZIF-L has unique cushion-shape cavity and layer-by-layer structure. For ZIF-67, it has cylindrical micropores, which limit the transfer of ion, while it can diffuse freely through the interlayer spacing in ZIF-L nanosheets with less resistance …”

“…Zeolitic imidazolate frameworks (ZIFs) are one class of MOFs . Among different types of MOFs, ZIFs show permanent porosity, outstanding structural adjustability, and excellent chemical and thermal stabilities. , For most of ZIFs, their shapes are 3D particle-like. , Feng and co-workers reported a new kind of ZIFs with a 2D leaflike structure . Li and co-workers investigated that 3D rhombic dodecahedra ZIF-67 would transform into 2D leaflike ZIF-L with different ratios of methanol/water solvents …”

“…25,26 Feng and coworkers reported a new kind of ZIFs with a 2D leaflike structure. 27 Li and co-workers investigated that 3D rhombic dodecahedra ZIF-67 would transform into 2D leaflike ZIF-L with different ratios of methanol/water solvents. 20 However, a few studies have been done on the morphology control of MOFs in supercapacitor.…”

Recent Advances in Polymer-Inorganic Mixed Matrix Membranes for CO2 Separation

“…The 2-D ZIFs are a new kind of ZIF, with a cushion-shaped cavity between the layers that has dimensions of 0.94 nm × 0.7 nm × 0.53 nm and a leaf-shaped structure (named ZIF-L in Figure 8; reported and prepared by Chen et al) [161]. Feng et al used 2-D ZIF and 2-D ZIF-derived nanoporous nanosheets in various applications due to their special morphology and pore features [162], including metal removal [163], water purification [164], solvent separation [111], gas separation [165][166][167][168], and so on. Recently, 2-D nanoporous nanosheets have attracted significant attention due to their beneficial features associated with lower diffusion resistance and large external surface area, the latter of which allows the exposure of more active sites.…”

“…The 2-D ZIFs are a new kind of ZIF, with a cushion-shaped cavity between the layers that has dimensions of 0.94 nm × 0.7 nm × 0.53 nm and a leaf-shaped structure (named ZIF-L in Figure 8; reported and prepared by Chen et al) [161]. Feng et al used 2-D ZIF and 2-D ZIF-derived nanoporous nanosheets in various applications due to their special morphology and pore features [162], including metal removal [163], water purification [164], solvent separation [111], gas separation [165][166][167][168], and so on. In a recent work by Deng et al, the effect of the morphology of ZIF on the CO2 separation ability of ZIFs/Pebax 2533 MMMs was investigated [168].…”