Gas Adsorption and Separation by the Al-Based Metal–Organic Framework MIL-160

Abstract

One of the most promising technologies, with a low energy penalty, for CO2 capture from diverse gas mixtures is based on the adsorption process using adsorbents. Many efforts are still currently deployed to search for water stable porous metal–organic frameworks (MOFs) with high CO2 affinity combined with large CO2 uptake. In this context, we have selected the water stable and easily scalable Al-based MOF MIL-160 showing an ultramicroporosity and potential interacting sites (hydroxyl and furan), both features being a priori relevant to favor the selective adsorption of CO2 over other gases including H2, N2, CH4, and CO. Density functional theory (DFT) and force-field-based grand-canonical Monte Carlo (GCMC) simulations were first coupled to predict the strength of host/guest interactions and the adsorption isotherms for all guests as single components and binary mixtures. This computational approach reveals the promises of this solid for the selective adsorption of CO2 with respect to these other investigated gases, controlled by a combination of thermodynamics and confinement effects. These predicted performances were further supported by real-coadsorption measurements performed on shaped samples which indicated that MIL-160­(Al) shows promising performance for the selective CO2 capture in post- and pre-combustion conditions.

<p>Toxicity screening of two prevalent metal organic frameworks for therapeutic use in human lung epithelial cells</p>

“…Human bronchial epithelial (BEAS-2B) cells were employed as a pertinent model for toxicity assessment 28. MOF selection was based on their demonstrated wide integration for gas storage applications,29 enzyme-based green technologies10 and drug delivery systems,30,31 while cell selection was based on demonstrated intrinsic sensitivity of such systems to convert biological activity into electrical measurements to be recorded in real time with an electric cell impedance sensing platform (ECIS) 25. By simply relying on the natural sensitivity of cells, our analysis demonstrates high-throughput, rapid and accurate screening and differentiation of toxicity based on MOFs physicochemical properties, as well as the capability for extension and large-scale screening of other MOF materials.…”

Rietveld Refinement of MIL‐160 and Its Structural Flexibility Upon H2O and N2 Adsorption

“…green, aqueous synthesis under mild conditions and this MOF can be easily granulated and has already been employed in a heat exchanger prototype . Moreover the thermal energy storage of MIL‐160‐CaCl 2 composites was already investigated and the water vapour stability renders the compound as an interesting candidate for CO 2 capture from flue gas due to its polar surface …”

Preparation of Quasi-MIL-101(Cr) Loaded Ceria Catalysts for the Selective Catalytic Reduction of NOx at Low Temperature

“…Although these carriers have the function of large specific surface area and supporting and stabilizing active components, the integration of high content active components and large specific surface area has become the direction of future development.Metal-Organic Frameworks (MOFs), also known as Porous Coordination Polymers (PCPs), constructed by inorganic metal ions and metal clusters with organic linkers, have emerged as a new class of porous materials [27][28][29]. MOFs play a crucial role in gas storage and separation [30,31], sensing [32,33], and catalysis [34,35], which are attributed to the material having an infinite topology, high porosity, large specific surface area and highly metal content [36,37].Among them, MILs materials are the most typical representatives. MILs are composed of a trivalent metal ion, such as Cr 3+ , Fe 3+ , or Al 3+ and a carboxylic acid, such as terephthalic acid or trimesic acid [38][39][40][41].…”

“…Metal-Organic Frameworks (MOFs), also known as Porous Coordination Polymers (PCPs), constructed by inorganic metal ions and metal clusters with organic linkers, have emerged as a new class of porous materials [27][28][29]. MOFs play a crucial role in gas storage and separation [30,31], sensing [32,33], and catalysis [34,35], which are attributed to the material having an infinite topology, high porosity, large specific surface area and highly metal content [36,37].…”