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Interestingly, the adsorption capacity of the MIL-100 granules kept increasing with pressure, unlike the commercial adsorbent zeolite 13X.
They showed that this composition was optimal to provide enough mechanical strength to withstand a drop test. Being a MOF undeniably implies responsibility and one of my favorite may well be passing on the passion and art to the next generation.Notably, granulation is of great importance for the chemical industry as it allows shaping materials (adsorbents, catalysts) into granules which are subsequently used in fixed-bed reactors. Removal of organic components (plasticizer and binder) from extrudates strongly depends on the thermal stability of the parent powder.
However, N 2 physisorption resulted in a S BET of 484 m 2 g −1, which is fairly low for this MOF even when taking into account 36 wt% of organic additives and suggests either partial hydrolysis of the HKUST-1 framework or pore blockage. Dailly and Poirier 33 further evaluated the hydrogen uptake on MOF-177 pellets provided by BASF over a wide range of temperatures. A wide variety of MOF-derived nanostructured materials can be obtained, including porous metal oxides, carbides, phosphides, carbons, doped carbons and composites. Importantly, the slow initial water uptake on UiO-66 is consistent with a hydrophobic surface, while the opposite was observed for MIL-127, highlighting its hydrophilic surface; at the same time, MIL-100 presented intermediate surface hydrophilicity/hydrophobicity features.Pelletization Pelletization (also referred to as “pressing”, “compressing” or “tableting”) is the most widely used shaping technique and represents the compaction of powder particles by applying pressure. mmol g −1 at 25 °C), while the former demonstrated gradually increasing gas uptake, reaching around 4 mmol g −1 at 3 bar and 25 °C. This depends on the nature of the parent MOF determined by the coordination state of the metal and the organic ligand. They found that the MOF preserved its crystal structure when compressed at 100 MPa, while it collapsed at 1000 MPa.