Structural Stability of Metal Organic Framework MOF-177

2009 ◽  
Vol 1 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Dipendu Saha ◽  
Shuguang Deng
Author(s):  
Thong Nguyen-Minh Le ◽  
Cheng-chau Chiu ◽  
Jer-Lai Kuo

In this work we investigate the effects of water on the structural stability of the Mn2(DSBDC) metal-organic framework (MOF) using DFT-based calculations. It has been found that the adsorption of...


2016 ◽  
Vol 52 (82) ◽  
pp. 12226-12229 ◽  
Author(s):  
Q. Fu ◽  
K. Xie ◽  
S. Tan ◽  
J. M. Ren ◽  
Q. Zhao ◽  
...  

A reduced copper metal–organic framework (rCu-MOF) containing CuI ions was prepared and employed as a catalyst for ‘Click’ reactions. The rCu-MOF presents higher catalytic activity, good structural stability as well as facile recyclability compared to traditional copper halide catalysts.


2017 ◽  
Vol 5 (42) ◽  
pp. 22305-22315 ◽  
Author(s):  
M. Mazaj ◽  
T. Čendak ◽  
G. Buscarino ◽  
M. Todaro ◽  
N. Zabukovec Logar

A HKUST-1 metal–organic framework was crystallized in the NH2-modified mesostructured silica FDU-12 in order to improve its structural stability upon water exposure.


Langmuir ◽  
2018 ◽  
Vol 34 (28) ◽  
pp. 8274-8280 ◽  
Author(s):  
Cristina Carucci ◽  
Larah Bruen ◽  
Victoria Gascón ◽  
Francesca Paradisi ◽  
Edmond Magner

2012 ◽  
Vol 730-732 ◽  
pp. 1024-1029
Author(s):  
André D.S. Barbosa ◽  
Salete S. Balula ◽  
Filipe A. Almeida Paz ◽  
Baltazar de Castro ◽  
Luís Cunha-Silva

Metal-Organic Framework Materials MIL‑101(Cr) ([Cr3X(H2O)2O(bdc)3]∙n(H2O), where X− = F− or OH−, n ≈ 25 and H2bdc stands for 1,4-benzene-dicarboxylic acid] and MOF‑5(Zn) [Zn4O(bdc)3] were prepared by hydrothermal or solvothermal methods as well as Microwave‑Assisted Synthesis (MWAS), for which the detailed synthetic parameters were optimized. The crystal structures were confirmed by powder X-ray diffraction and the materials were further characterized by FT‑IR absorption spectroscopy. MIL‑101(Cr) and MOF‑5(Zn) showed weak catalytic activity in the oxidation of terpene, thiophene and cis-cyclooctene. Reasonable catalytic activity was observed for MOF-5(Zn) in the epoxidation of cis-cyclooctene and a 100 % of selectivity was observed for the epoxide. The structural stability of the materials was tested under the employed catalytic medium for oxidation reactions. MOF-5(Zn) revealed a remarkable structural stability at high temperature and also in the presence of high oxidant amounts.


2021 ◽  
Author(s):  
Jintong Liu ◽  
Jing Huang ◽  
Lei Zhang ◽  
Jianping Lei

We review the general principle of the design and functional modulation of nanoscaled MOF heterostructures, and biomedical applications in enhanced therapy.


2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>


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