Asymmetric pore windows in MOF membranes for natural gas valorization

Self-healing mixed matrix membranes containing metal–organic frameworks

“…To date, MMMs with MOFs have been prepared using several polymeric materials like poly(ethylene-co-vinyl acetate) (EVA), poly(vinylidene fluoride) (PVDF), poly(ethylene oxide) (PEO), styrene−butadiene (SBS) copolymers, polyurethanes, etc. [15][16][17][18][19][20][21][22][23][24] These MMMs have been investigated for applications in sensing, 25 separation of dyes and toxic chemicals, 16,17 and other technologies. Not all polymer-MOF combinations are suitable for forming MMMs, as MOF particles often fail to combine well with the polymer matrix and can suffer from particle aggregation that disrupt the function and mechanical strength of the resulting MMM.…”

Advances in metal–organic framework-based membranes

“…Moreover, our group extended this strategy to mixed-linker MOF polycrystalline membranes based on fumarate (fum) and mesaconate (mes) linkers with an irregular pore shape effective for nitrogen removal from raw natural gas. 71 Ultrathin (∼30 nm) MOF membranes with varying fum to mes ratios could be prepared on AAO and carbon nanotube (CNT)-modified stainless steel net supports. Two-dimensional magic-angle spinning solid-state nuclear magnetic resonance (NMR) results confirmed the co-existence of two types of linkers within one window of the MOF structure in the resultant membranes.…”

Metal–Organic Frameworks Meet Molecularly Imprinted Polymers: Insights and Prospects for Sensor Applications

“…Moreover, MIPs are completely synthetic and animal-free alternatives, in contrast to the production of antibodies contingent upon the use of a host animal. In contrast, porous materials such as porous coordination polymers, also known as metal–organic frameworks (MOFs), are widely used for gas storage, membranes, , catalysis, drug release, , chemical sensors, and biosensors. , MOFs can be synthesized through the coordination of metal ions/clusters with organic linkers, which leads to periodic crystalline porous structures. − The ability to design, fine-tune, and functionalize MOFs’ porous structures makes them suitable candidates for various applications. − Covalent–organic frameworks (COFs) belong to the same spectrum of crystalline porous materials as MOFs. However, COFs comprise highly ordered networks built with organic linkers, connected through covalent bonds, and with light elements such as hydrogen, boron, carbon, nitrogen, and oxygen, unlike the metal clusters in MOFs .…”