Influence of chemical composition of the open bimetallic sites of MOF-74 on H2 adsorption

DMOF-1 as a Representative MOF for SO2 Adsorption in Both Humid and Dry Conditions

“…This distortion is seen in a variety of copper-containing materials, such as MOF-74 and CuF 2 , and is caused by the electronic degeneracy of the d 9 copper atom. − Our results suggest that the combination of these three effects is contributing to the stability of the MOF in humid SO 2 conditions and explain why Cu–DMOF–TM is the most stable and Ni–DMOF–TM the second most stable. The Jahn–Teller distortion has been discussed previously in the literature and is relatively common among copper-based MOFs, but to the best of the authors’ knowledge, this is the first time it has been mentioned in the DMOF class. − This may provide insight and promote future research into copper octahedrally co-ordinated MOFs to determine whether they are more inherently stable than their other metal-containing counterparts or if this distinction only occurs in the DMOF–TM structure. In either case it appears that changing the metal node was not able to stabilize the structures completely, as all of the materials degraded to some degree.…”

Impregnation Synthesized Cu@MIL‐101(Cr) Catalyzes the Oxidation of Styrene to Benzaldehyde with TBHP**

“…It can be deduced from Table 1 that M@MIL‐101(Cr) catalysts show a significant synergistic effect as compared to MIL‐101(Cr), not merely have much better catalytic performance in styrene oxidation which exhibit higher conversion of styrene, but can catalyze the generation of the target product benzaldehyde (A) selectively as well, such synergistic effect has been reported by other researchers in the bimetallic catalysts they prepared [37,38] . The reaction will generate phenylacetaldehyde (C) as a minor product, probably ascribing to the follow‐up oxidation of styrene oxide (B) when TBHP exists.…”

“…It can be deduced from Table 1 that M@MIL-101(Cr) catalysts show a significant synergistic effect as compared to MIL-101(Cr), not merely have much better catalytic performance in styrene oxidation which exhibit higher conversion of styrene, but can catalyze the generation of the target product benzaldehyde (A) selectively as well, such synergistic effect has been reported by other researchers in the bimetallic catalysts they prepared. [37,38] The reaction will generate phenylacetaldehyde (C) as a minor product, probably ascribing to the followup oxidation of styrene oxide (B) when TBHP exists. Among them, Cu@MIL-101(Cr) has the most superior catalytic performance, both the highest styrene conversion and benzaldehyde selectivity were obtained up to 97.45 % and 84.39 %, respec- [a] Reaction conditions: catalysts (60 mg), styrene (10 mmol), acetonitrile (10 mL), TBHP (30 mmol), 80 °C, 8 h. Such reaction conditions were adopted in all catalytic reactions below if not specified.…”

Novel and Versatile Cobalt Azobenzene‐Based Metal‐Organic Framework as Hydrogen Adsorbent

“…It is well known that the chemical nature of both, metal clusters and organic linkers, have a huge influence in the interactions between H 2 molecules and MOF structure ,. In our and other previous studies, it has been observed that cobalt‐based MOFs show high affinity to hydrogen molecules, reaching higher isosteric heat of adsorption values than other isostructural frameworks based on different metals, maybe since cobalt could act as a Lewis acid site . Moreover, numerous works report that MOFs constructed by aromatic ligands use to show high internal surface areas, displaying significant hydrogen uptakes ,,.…”