Just add water: for instant and scalable conversion of metal acetates to metal–organic frameworks

2020 ◽  
Vol 12 (38) ◽  
pp. 4635-4637
Author(s):  
Vijayan Srinivasapriyan
Keyword(s):  
High Pressure ◽  
Metal Organic Frameworks ◽  
Ambient Conditions ◽  
High Pressure And Temperature ◽  
Metal Organic ◽  
Scalable Synthesis

MOFs are typically synthesized under severe conditions that require high pressure and temperature. So herein we necessitated advances in their expeditious and scalable synthesis at ambient conditions.

scholarly journals Just Add Water: For Instant and Scalable Conversion of Metal Acetate to Metal-Organic Frameworks

2020 ◽  
Author(s):  
Srinivasapriyan Vijayan
Keyword(s):  
Room Temperature ◽  
Metal Organic Frameworks ◽  
Divalent Metal ◽  
Ambient Conditions ◽  
Metal Acetate ◽  
High Pressure And Temperature ◽  
Industrial Implementation ◽  
Metal Organic ◽  
Scalable Synthesis ◽  
Harsh Conditions

<div><p>MOFs are typically synthesized under harsh conditions that require high pressure and temperature. So, here we necessitating advances in their expedient and scalable synthesis at ambient conditions. Toward that end, the Cu-BDC & Cu-BTC can now be prepared in minutes via a controlled dissolution– crystallization route with divalent metal acetate as a precursor at room temperature, which would be highly desired for industrial implementation and commercialization<br></p></div>

scholarly journals Just Add Water: For Instant and Scalable Conversion of Metal Acetate to Metal-Organic Frameworks

2020 ◽  
Author(s):  
Srinivasapriyan Vijayan
Keyword(s):  
Room Temperature ◽  
Metal Organic Frameworks ◽  
Divalent Metal ◽  
Ambient Conditions ◽  
Metal Acetate ◽  
High Pressure And Temperature ◽  
Industrial Implementation ◽  
Metal Organic ◽  
Scalable Synthesis ◽  
Harsh Conditions

<div><p>MOFs are typically synthesized under harsh conditions that require high pressure and temperature. So, here we necessitating advances in their expedient and scalable synthesis at ambient conditions. Toward that end, the Cu-BDC & Cu-BTC can now be prepared in minutes via a controlled dissolution– crystallization route with divalent metal acetate as a precursor at room temperature, which would be highly desired for industrial implementation and commercialization<br></p></div>

Enhancement of Carbon Dioxide Adsorption by Lithium Decorating and Fullerene Encapsulating in Metal-Organic Frameworks

2013 ◽  
Vol 773 ◽  
pp. 927-931
Author(s):  
Rui Feng Lu ◽  
De Wei Rao ◽  
Zhao Shun Meng ◽  
Kai Ming Deng
Keyword(s):  
Metal Organic Frameworks ◽  
Carbon Dioxide Adsorption ◽  
Grand Canonical Monte Carlo ◽  
Ambient Conditions ◽  
Li Doping ◽  
Lithium Doping ◽  
Crystal Density ◽  
Metal Organic ◽  
Density Surface ◽  
Grand Canonical

Using grand canonical Monte Carlo method, the capacities of CO2adsorption in IRMOF-12 and-14 are simulated at ambient conditions. We have theoretically found that CO2uptake can be greatly enhanced by either lithium doping or fullerene impregnating, and the influence of the Li doping is more significant than that of C60impregnation. Furthermore, the CO2storage capacities of IRMOFs after both Li doping and C60impregnating are improved to be about 30 times those of corresponding pristine structures. To further understand the mechanism, we analyzed the distribution pattern of CO2adsorption in materials and investigated the relationships between CO2uptakes and crystal density, surface area per volume and per mass, and pore volume per volume and per mass in detail.

scholarly journals Compressibility Studies of Zirconium Based Metal-Organic Frameworks

2014 ◽  
Vol 70 (a1) ◽  
pp. C157-C157
Author(s):  
Claire Hobday ◽  
Stephen Moggach ◽  
Carole Morrison ◽  
Tina Duren ◽  
Ross Forgan
Keyword(s):  
High Pressure ◽  
Mechanical Stability ◽  
Metal Organic Frameworks ◽  
External Pressure ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Crystallography ◽  
Pressure Medium ◽  
Metal Organic ◽  
University Of Oslo

Metal-organic frameworks (MOFs) are a well-studied class of porous materials with the potential to be used in many applications such as gas storage and catalysis.[1] UiO-67 (UiO = University of Oslo), a MOF built from zirconium oxide units connected with 4,4-biphenyldicarboxylate (BDC) linkers, forms a face centred cubic structure. Zirconium has a high affinity towards oxygen ligands making these bridges very strong, resulting in UiO-based MOFs having high chemical and thermal stability compared to other MOF structures. Moreover, UiO-67 has become popular in engineering studies due to its high mechanical stability.[2] Using high pressure x-ray crystallography we can exert MOFs to GPa pressures, experimentally exploring the mechanical stability of MOFs to external pressure. By immersing the crystal in a hydrostatic medium, pressure is applied evenly to the crystal. On surrounding a porous MOF with a hydrostatic medium composed of small molecules (e.g. methanol), the medium can penetrate the MOF, resulting in medium-dependant compression. On compressing MOF-5 (Zn4O(BDC)3) using diethylformamide as a penetrating medium, the framework was shown to have an increased resistance to compression, becoming amorphous several orders of magnitude higher in pressure than observed on grinding the sample.[3] Here we present a high-pressure x-ray diffraction study on the UiO-based MOF UiO-67, and several new synthesised derivatives built from same metal node but with altered organic linkers, allowing us to study in a systematic way, the mechanical stability of the MOF, and its pressure dependence on both the linker, and pressure medium.

scholarly journals Zirconium-Based Metal Organic Frameworks for the Capture of Carbon Dioxide and Ethanol Vapour. A Comparative Study

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7620
Author(s):  
Meryem Saidi ◽  
Phuoc Hoang Ho ◽  
Pankaj Yadav ◽  
Fabrice Salles ◽  
Clarence Charnay ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Metal Organic Frameworks ◽  
Van Der Waals Interactions ◽  
Ambient Conditions ◽  
Ethanol Vapour ◽  
Metal Organic ◽  
Experimental Findings ◽  
Two Parameters ◽  
Low Coverage ◽  
Ethanol Adsorption

This paper reports on the comparison of three zirconium-based metal organic frameworks (MOFs) for the capture of carbon dioxide and ethanol vapour at ambient conditions. In terms of efficiency, two parameters were evaluated by experimental and modeling means, namely the nature of the ligands and the size of the cavities. We demonstrated that amongst three Zr-based MOFs, MIP-202 has the highest affinity for CO2 (−50 kJ·mol−1 at low coverage against around −20 kJ·mol−1 for MOF-801 and Muc Zr MOF), which could be related to the presence of amino functions borne by its aspartic acid ligands as well as the presence of extra-framework anions. On the other side, regardless of the ligand size, these three materials were able to adsorb similar amounts of carbon dioxide at 1 atm (between 2 and 2.5 µmol·m−2 at 298 K). These experimental findings were consistent with modeling studies, despite chemisorption effects, which could not be taken into consideration by classical Monte Carlo simulations. Ethanol adsorption confirmed these results, higher enthalpies being found at low coverage for the three materials because of stronger van der Waals interactions. Two distinct sorption processes were proposed in the case of MIP-202 to explain the shape of the enthalpic profiles.

scholarly journals Structural studies of metal–organic frameworks under high pressure

2015 ◽  
Vol 71 (6) ◽  
pp. 587-607 ◽  
Author(s):  
Scott C. McKellar ◽  
Stephen A. Moggach
Keyword(s):  
High Pressure ◽  
Coordination Polymers ◽  
Metal Organic Frameworks ◽  
Structural Studies ◽  
Structural Effects ◽  
Elevated Pressures ◽  
High Pressure Studies ◽  
Metal Organic ◽  
The Subject ◽  
Chemical Response

Over the last 10 years or so, the interest and number of high-pressure studies has increased substantially. One area of growth within this niche field is in the study of metal–organic frameworks (MOFs or coordination polymers). Here we present a review on the subject, where we look at the structural effects of both non-porous and porous MOFs, and discuss their mechanical and chemical response to elevated pressures.

scholarly journals CO2 sensing under ambient conditions using metal–organic frameworks

2020 ◽  
Vol 5 (6) ◽  
pp. 1071-1076
Author(s):  
Bohui Ye ◽  
Andreea Gheorghe ◽  
Roy van Hal ◽  
Marcel Zevenbergen ◽  
Stefania Tanase
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Metal Organic Frameworks ◽  
Ambient Conditions ◽  
Metal Organic

Determining accurately CO2 levels is highly relevant when monitoring indoor air quality.

Ultrafast room-temperature synthesis of hierarchically porous metal–organic frameworks with high space–time yields

CrystEngComm ◽  
2020 ◽  
Vol 22 (15) ◽  
pp. 2675-2680 ◽  
Author(s):  
Chongxiong Duan ◽  
Yi Yu ◽  
Feier Li ◽  
Ying Wu ◽  
Hongxia Xi
Keyword(s):  
Room Temperature ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Space Time ◽  
Ambient Conditions ◽  
Temperature Synthesis ◽  
Hierarchically Porous ◽  
Room Temperature Synthesis ◽  
Metal Organic ◽  
High Space

We developed a facile and general approach to rapidly synthesize four hierarchically porous MOFs (HKUST-1, ZIF-8, ZIF-61, and ZIF-90) under ambient conditions.

scholarly journals Crystallography of metal–organic frameworks

IUCrJ ◽  
2014 ◽  
Vol 1 (6) ◽  
pp. 563-570 ◽  
Author(s):  
Felipe Gándara ◽  
Thomas D. Bennett
Keyword(s):  
High Pressures ◽  
Metal Organic Frameworks ◽  
Chemical Diversity ◽  
Ambient Conditions ◽  
X Ray Diffraction ◽  
Complex Behaviour ◽  
Surface Areas ◽  
Rate Limiting Step ◽  
Structure Solution ◽  
Metal Organic

Metal–organic frameworks (MOFs) are one of the most intensely studied material types in recent times. Their networks, resulting from the formation of strong bonds between inorganic and organic building units, offer unparalled chemical diversity and pore environments of growing complexity. Therefore, advances in single-crystal X-ray diffraction equipment and techniques are required to characterize materials with increasingly larger surface areas, and more complex linkers. In addition, whilst structure solution from powder diffraction data is possible, the area is much less populated and we detail the current efforts going on here. We also review the growing number of reports on diffraction under non-ambient conditions, including the response of MOF structures to very high pressures. Such experiments are important due to the expected presence of stresses in proposed applications of MOFs – evidence suggesting rich and complex behaviour. Given the entwined and inseparable nature of their structure, properties and applications, it is essential that the field of structural elucidation is able to continue growing and advancing, so as not to provide a rate-limiting step on characterization of their properties and incorporation into devices and applications. This review has been prepared with this in mind.

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