نتایج جستجو برای: MIL-53-Cr
تعداد نتایج: 121221 فیلتر نتایج به سال:
In this paper, porous metal−organic frameworks (MIL-53 [CrIII (OH).{O2C-C6H4-CO2}.{HO2C-C6H4-CO2H}x]) were hydrothermally synthesized and, then, a hybrid composite of these synthesized porous metal−organic frameworks (MOF) with acid-treated multi-walled carbon nanotubes (MWCNTs) was prepared. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunau...
سه چارچوب فلز-آلی (mof) نانو متخلخل از آهن (iii) با 2-آمینوترفتالیک اسید و ترفتالیک اسید، (fe-mil-101-nh2) (1) و (fe-mil-53) (2) و (fe-mil-53-nh2) (3)، در چارچوب فلز-آلی نانو متخلخل از کروم (iii) با ترفتالیک اسید، (cr-mil-53) (4) و (cr-mil-101) (5)، یک چارچوب فلز-آلی نانو متخلخل از منگنز (ii) با 5،3،1 بنزن تری کربوکسیلیک اسید h2o، {(ch3)2 nh2} {mn3(btc) (hcoo)4 (h2o)} (6)، به روش سالووترمال و ی...
The photocatalytic reduction of Cr(VI) is investigated over iron(III)-based metal-organic frameworks (MOFs) structured as MIL-88B. It is found that MIL-88B (Fe) MOFs, containing Fe3-μ3-oxo clusters, can be used as photocatalyst for the reduction of Cr(VI) under visible light irradiation, which is due to the direct excitation of Fe3-μ3-oxo clusters. The amine-functionalized MIL-88B (Fe) MOFs (de...
The structural and dynamical properties of water in the nanopores of the MIL-53(Cr) metal-organic framework are examined using classical and quantum molecular dynamics simulations. The results indicate that, depending on the number of molecules adsorbed per unit cell as well as on the shape of the nanopores, the explicit inclusion of nuclear quantum effects can either enhance or inhibit the mol...
A mixed cation MIL-53(Cr-Fe) MOF has been obtained by direct synthesis. Multiple experimental techniques have demonstrated the presence of a genuine mixed phase, leading to a breathing behaviour different from either of the single cation analogues.
Understanding the adsorption of water in metal−organic frameworks (MOF), and particularly in soft porous crystals, is a crucial prerequisite before considering MOFs for industrial applications. We report here a joint experimental and theoretical study on the behavior of a gallium-based breathing MOF, Ga-MIL-53, upon water adsorption. By looking at the energetics and thermodynamics of Ga-MIL-53,...
The breathing behavior of the MIL-53(Cr) metal-organic framework (MOF) has been explored previously upon guest-adsorption and thermal and mechanical stimuli. Here, advanced molecular simulations based on the use of an accurate force field to describe the flexibility of this porous framework demonstrate that the application of an electrical field induces the structural switching of this MOF lead...
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