نتایج جستجو برای: mofs

تعداد نتایج: 2266  

Journal: :Acta crystallographica Section B, Structural science, crystal engineering and materials 2014
Chandan Dey Tanay Kundu Bishnu P Biswal Arijit Mallick Rahul Banerjee

Metal-organic frameworks (MOFs) are a class of hybrid network supramolecular solid materials comprised of organized organic linkers and metal cations. They can display enormously high surface areas with tunable pore size and functionality, and can be used as hosts for a range of guest molecules. Since their discovery, MOFs have experienced widespread exploration for their applications in gas st...

Journal: :Journal of the American Chemical Society 2016
Xin Zhang Xu Zhang Jacob A Johnson Yu-Sheng Chen Jian Zhang

Two non-interpenetrated zirconium metal-organic frameworks (Zr-MOFs), NPF-200 and NPF-201, were synthesized via the assembly of elongated tetrahedral linkers with Zr6 and Zr8 clusters. They represent the first examples of MOFs to have the β-UH3-like, 4,12,12T1 topology. Upon activation, NPF-200 exhibits the largest BET surface area (5463 m(2) g(-1)) and void volume (81.6%) among all MOFs formed...

Journal: :Dalton transactions 2012
Wenting Zhu Cheng He Pengyan Wu Xiao Wu Chunying Duan

Two enantiomeric Zn-MOFs, having l- or d-proline chiral functionality, were achieved through in situ click reactions by modifying two opposite chiral adducts within the same pre-assembled achiral MOFs, respectively. Both of them exhibited remarkable catalytic activities in the relative asymmetric aldol reactions, and led to the formation of opposite enantiomorphs. The significant advantage of t...

Journal: :Dalton transactions 2016
Teng-Hao Chen Andreas Schneemann Roland A Fischer Seth M Cohen

A series of unprecedented crown ether- and thiacrown ether-derivatized benzene dicarboxylic acid (H2bdc) ligands has been synthesized and incorporated into the prototypical isoreticular metal-organic framework (IRMOF) and UiO-66 materials. In the case of UiO-66, only MOFs comprised from a mixed-ligand composition, requiring both unsubstituted bdc and crown ether containing ligands, could be pre...

Journal: :international journal of nano dimension 0
a. majedi school of chemistry, college of science, university of tehran, tehran, islamic republic of iran f. davar department of chemistry, isfahan university of technology, isfahan, 84156-83111, islamic republic of iran a. r. abbasi school of chemistry, college of science, university of tehran, tehran, islamic republic of iran

photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as tio2 and zno have received much attention over the last two decades. however, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. metal-organic frameworks (mofs) are the latest class ...

Journal: :Chemical Society reviews 2014
Yamil J Colón Randall Q Snurr

There is an almost unlimited number of metal-organic frameworks (MOFs). This creates exciting opportunities but also poses a problem: how do we quickly find the best MOFs for a given application? Molecular simulations have advanced sufficiently that many MOF properties - especially structural and gas adsorption properties - can be predicted computationally, and molecular modeling techniques are...

2016
Igor Huskić Igor V Pekov Sergey V Krivovichev Tomislav Friščić

Metal-organic frameworks (MOFs) are an increasingly important family of advanced materials based on open, nanometer-scale metal-organic architectures, whose design and synthesis are based on the directed assembly of carefully designed subunits. We now demonstrate an unexpected link between mineralogy and MOF chemistry by discovering that the rare organic minerals stepanovite and zhemchuzhnikovi...

2012
L. Kong Y. Liu S. Du H. Liu X. Zhang J. Qiu K. L. Yeung

In recent years, metal-organic frameworks (MOFs) membranes have attactted great interest due to their particular properties in separation and catalysis fields . Although there are some reports on MOFs membranes by different fabrication techniques such as in-situ synthesis, secondary growth, microwave-assisted method, etc , searching for good synthesis methods for MOFs membranes are still hot re...

Journal: :Chemical reviews 2012
Lauren E Kreno Kirsty Leong Omar K Farha Mark Allendorf Richard P Van Duyne Joseph T Hupp

1. INTRODUCTION Among the classes of highly porous materials, metalÀorganic frameworks (MOFs) are unparalleled in their degree of tunability and structural diversity as well as their range of chemical and physical properties. MOFs are extended crystalline structures wherein metal cations or clusters of cations (" nodes ") are connected by multitopic organic " strut " or " linker " ions or molec...

2016
Sean P Collins Thomas D Daff Sarah S Piotrkowski Tom K Woo

A genetic algorithm that efficiently optimizes a desired physical or functional property in metal-organic frameworks (MOFs) by evolving the functional groups within the pores has been developed. The approach has been used to optimize the CO2 uptake capacity of 141 experimentally characterized MOFs under conditions relevant for postcombustion CO2 capture. A total search space of 1.65 trillion st...

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