A complex metal-organic framework catalyst for microwave-assisted radical polymerization

Abstract

Metal-organic frameworks (MOFs) have emerged as promising materials for use in practical applications of renewable energy, water harvesting, and catalytic transformation. Here we report the design of a highly porous MOF, termed MOF-907. Single crystal X-ray diffraction analysis, in combination with topological deconstruction, revealed a MOF based on trigonal prismatic secondary building units linked together by triangular and linear units to form a previously unseen net (nha) with minimal transitivity, which is rational for these constituent building units. The catalytic properties of MOF-907 for the microwave-assisted radical polymerization of methyl methacrylate were demonstrated. MOF-907 produced a poly methyl methacrylate product in a short reaction time (30 min) with high yield (98%), high molecular weight (20,680 g mol −1), and low polydispersity (1.23).

Reticular Materials for Artificial Photoreduction of CO2

“…The high Lewis acidity of metal‐oxo clusters in MOFs has been largely explored in a variety of applications, e.g., from gas storage to catalysis and sensing. [ 156–159 ] Although the exceptional stability of zeolites or metal oxides highlights their industrially applicable level for years, their catalytic performance remains insignificant due to the weak Lewis acidity. [ 25 ] MOFs with well‐defined structures consisting of strong Lewis acidic centers have been proven to be effective catalysts in various organic transformations (may replace zeolites to some extent) potentially inspiring scientists to seek for diverse catalyst structures suited to the photoreduction of CO 2 .…”

“…The high Lewis acidity of metal-oxo clusters in MOFs has been largely explored in a variety of applications, e.g., from gas storage to catalysis and sensing. [156][157][158][159] Although the exceptional stability of zeolites or metal oxides highlights their industrially applicable level for years, their Figure 15. Structure of TTCOF-Zn and the mechanism of the CO 2 -to-CO photoreduction in water.…”

Benchtop In Situ Measurement of Full Adsorption Isotherms by NMR

“…Porous solids with a high specific surface area exhibit unique physical and chemical properties and are crucial in catalytic and separation processes. − Typically, the adsorption characteristics of such materials are evaluated by recording their uptake of a probe molecule as a function of its partial pressure at a given temperature . While such physisorption methods are commonplace and established, the underlying adsorbent–adsorbate interactions are inferred from the macroscopic pressure-loading curves according to necessarily approximating models.…”

Zinc Sulfide Decorated on Nitrogen‐Doped Carbon Derived from Metal‐Organic Framework Composites for Highly Reversible Lithium‐Ion Battery Anode

“…The most attractive feature is that the porosity, high specific surface area or three‐dimensional structure can be regulated by molecular design, and different functional groups can be assigned to the ordered structure to produce multi‐functional properties . Compared with other porous materials, MOF has wider application prospects, including gas adsorption and separation, proton conduction, drug delivery and sustained release, sensing, catalysis, optics, and energy storage . In 2006, the Li team took the lead in using MOF‐177 [Zn 4 O (1,3,5‐benzenetribenzoate) 2 ] as the anode material for lithium‐ion batteries.…”