Synthesis and characterization of the interpenetrated MOF-5

Transmission : The transmission electron micrographs of samples A and B are shown in . The figure shows that MOF-5 possessed many small pores of the order of 2 to 4 nm.

MOF-5 | Metal-Organic Frameworks (MOF's) | Sigma …

T1 - Synthesis, characterization and gas transport properties of MOF-5 membranes

Synthesis and Characterization of the Interpenetrated MOF-5

However, the Lewis acidity of MOF-5-NO2 was stronger than that of MOF-5 for the electron withdrawing effect of —NO2, which was one of the reasons for the high activity of MOF-5-NO2 on the synthesis of isocyanates by the thermal decomposition of carbamates.

Sonochemical synthesis of MOF-5 - ResearchGate

Characterized by XRD, FTIR, N2 adsorption and SEM, the crystalline structure and morphology of MOF-5-NO2 were found resembled that of MOF-5, and both the MOFs exhibited microporosity with high specific surface area.

Facile synthesis of hydroxy-modified MOF-5 for …

The synthesized MOFs were characterized usingField emission scanning electron microscopy (FESEM) for surfacemorphology, Thermogravimetric analysis (TGA) for thermal stability,X-ray diffraction (XRD) for crystals plane, Brunauer-Emmet-Teller (BET)for surface area and CO2 adsorption.

Representative FESEM and TEM images of the spherical MOF-5 ..

This research is conducted to investigate theeffect of MOF-5 and MOF-5 modified with multi-wall carbon nanotubes(MWCNTs) and expandable graphite (EG) on the performance ofCO2 adsorption.

Synthesis, structure, and luminescence of Cd-MOF …

N2 - A facile synthesis of partially hydroxy-modified MOF-5 and its improved H2-adsorption capacity by lithium doping are reported. The reaction of Zn(NO3)2×6 H2O with a mixture of terephthalic acid (H2BDC) and 2-hydroxyterephthalic acid (H 2BDC-OH) in DMF gave hydroxy-modified MOF-5 (MOF-5-OH-x), in which the molar fraction (x) of BDC-OH2- was up to 0.54 of the whole ligand. The MOF-5-OH-x frameworks had high BET surface areas (about 3300 m 2 g-1), which were comparable to that of MOF-5. We suggest that the MOF-5-OH-x frameworks are formed by the secondary growth of BDC 2--rich MOF-5 seed crystals, which are nucleated during the early stage of the reaction. Subsequent Li doping into MOF-5-OH-x results in increased H2 uptake at 77 K and 0.1 MPa from 1.23 to 1.39 wt. % and an increased isosteric heat of H2 adsorption from 5.1-4.2 kJ mol -1 to 5.5-4.4 kJ mol-1. Would I Li to you: Li doping into hydroxy-modified MOF-5 (MOF-5-OH-x) results in increased H2 uptake at 77 K and 0.1 MPa (from 1.23 to 1.39 wt. %) and an increased isosteric heat of H2 adsorption (from 5.1-4.2 to 5.5-4.4 kJ mol-1).

Chiral variants of the prototypal metal-organic framework MOF-5, ..

AB - Metal-organic framework coordination polymer materials of MOF-5 with Fm3m cubic structure and tetrahedral structure were successfully synthesized at room temperature and pressure using liquid-crystal (i.e. surfactant) templating method and direct mixing method. The crystallinity increased as metal (Zn)/linker (benzenedicarboxylic acid, BDC) ratios were varied from 0.3 to 0.5. However, the cubic structure of evacuated framework was relatively disrupted at metal/linker ratio of 0.7. Direct-mixing synthesis approach resulted in MOF-5 with layered tetragonal structure due to the increased mobility of the organic-linker as the metal/linker ratios were increased. On the other hand, liquid-crystal templating method resulted in MOF-5 with cubic structure with sizes of ca. 3-5 micron. Changing the solvent from dimethylformamide to chloroform during the synthesis affected the size of the single cubic to decrease from 5 micron to 3 micron, respectively. Furthermore, MOF-5 prepared with metal/linker ratio 0.5 and aged in solvents with higher crystallinity exhibited higher ammonia adsorption uptake at ca. 7.2%.

MOFomics - Pore Characterization of MOF-5 (IRMOF-1)

Under solvent-free condition, MOF-5-NO2 significantly accelerated the reaction rate of the decomposition of methyl N-phenyl carbamate, and the turnover frequency(TOF) was seven times higher than that on ZnO.