Robust synthesis routes and porosity of the Al-based metal–organic frameworks Al-fumarate, CAU-10-H and MIL-160

2019 ◽  
Vol 48 (9) ◽  
pp. 2967-2976 ◽  
Author(s):  
Niels Tannert ◽  
Christian Jansen ◽  
Sandra Nießing ◽  
Christoph Janiak
Keyword(s):  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Synthesis Routes ◽  
Robust Synthesis

We confirm that the investigated Al-MOFs are robust with respect to reproducible synthesis and concomitant porosity as a prerequisite for applications.

Mechanochemical synthesis of two-dimensional metal-organic frameworks

2019 ◽  
Vol 34 (2) ◽  
pp. 119-123 ◽  
Author(s):  
Omar Barreda ◽  
Gregory R. Lorzing ◽  
Eric D. Bloch
Keyword(s):  
Mechanochemical Synthesis ◽  
Metal Organic Frameworks ◽  
Isophthalic Acid ◽  
Organic Ligands ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Synthesis Routes ◽  
Solvent Free Synthesis

Powder X-ray diffraction was used to monitor the solvent-free synthesis of two-dimensional (2D) metal–organic frameworks (MOFs) via mechanochemical methods. For four isophthalic acid-based, alkoxide-functionalized organic ligands, optimal milling times were found to vary from 12 to 48 min. This work confirms that mechanochemical synthesis routes can be utilized to afford highly-crystalline, 2D MOFs.

Ce-MIL-140: expanding the synthesis routes for cerium(iv) metal–organic frameworks

2020 ◽  
Vol 49 (32) ◽  
pp. 11396-11402 ◽  
Author(s):  
Jannick Jacobsen ◽  
Lasse Wegner ◽  
Helge Reinsch ◽  
Norbert Stock
Keyword(s):  
Metal Organic Frameworks ◽  
Synthetic Route ◽  
Building Unit ◽  
Metal Organic ◽  
Synthesis Routes ◽  
The Way

A solvothermal synthetic route to Ce(iv)-MOFs using acetonitrile as solvent is reported that avoids the formation of the extremely dominant hexanuclear inorganic building unit (IBU) and paves the way for higher IBU diversity in Ce(iv)-MOFs.

Aqueous Flow Reactor and Vapour-Assisted Synthesis of Aluminium Dicarboxylate Metal-Organic Frameworks for Use as Water Adsorbents

2019 ◽  
Author(s):  
Timothée Stassin ◽  
Steve Waitschat ◽  
Niclas Heidenreich ◽  
Helge Reinsch ◽  
Finn Puschkell ◽  
...  
Keyword(s):  
Water Sorption ◽  
Flow Reactor ◽  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Heat Pumps ◽  
Sorption Properties ◽  
Fine Tuning ◽  
Metal Organic ◽  
Synthesis Routes ◽  
Water Sorption Properties

Energy-efficient indoors temperature control can be realised through adsorption chillers or adsorption heat pumps based on the reversible adsorption and desorption of water in porous materials. Stable microporous aluminium-based metal-organic frameworks (MOFs) present promising water sorption properties for this goal. The development of synthesis routes that make use of available and affordable building blocks and avoid the use of organic solvents is crucial to advance this field. In this work, two scalable synthesis routes under mild reaction conditions were developed for aluminium-based MOFs: (1) in aqueous solutions using a continuous flow reactor and (2) through the vapour-assisted conversion of solid precursors. Fumaric acid, its methylated analogue mesaconic acid, as well as mixtures of the two were used as linkers. The synthesis conditions determine the crystal structure (symmetry and topology), either the MIL-53 or MIL-68 type with square-grid or kagome-grid topology, respectively. Fine-tuning resulted in new MOF materials thus far inaccessible through conventional synthesis routes. Furthermore, by varying the linker ratio, the water sorption properties can be continuously adjusted while retaining the sigmoidal isotherm shape advantageous for heat transformation applications.

Aqueous Flow Reactor and Vapour-Assisted Synthesis of Aluminium Dicarboxylate Metal-Organic Frameworks for Use as Water Adsorbents

2019 ◽  
Author(s):  
Timothée Stassin ◽  
Steve Waitschat ◽  
Niclas Heidenreich ◽  
Helge Reinsch ◽  
Finn Puschkell ◽  
...  
Keyword(s):  
Water Sorption ◽  
Flow Reactor ◽  
Metal Organic Frameworks ◽  
Building Blocks ◽  
Heat Pumps ◽  
Sorption Properties ◽  
Fine Tuning ◽  
Metal Organic ◽  
Synthesis Routes ◽  
Water Sorption Properties

Energy-efficient indoors temperature control can be realised through adsorption chillers or adsorption heat pumps based on the reversible adsorption and desorption of water in porous materials. Stable microporous aluminium-based metal-organic frameworks (MOFs) present promising water sorption properties for this goal. The development of synthesis routes that make use of available and affordable building blocks and avoid the use of organic solvents is crucial to advance this field. In this work, two scalable synthesis routes under mild reaction conditions were developed for aluminium-based MOFs: (1) in aqueous solutions using a continuous flow reactor and (2) through the vapour-assisted conversion of solid precursors. Fumaric acid, its methylated analogue mesaconic acid, as well as mixtures of the two were used as linkers. The synthesis conditions determine the crystal structure (symmetry and topology), either the MIL-53 or MIL-68 type with square-grid or kagome-grid topology, respectively. Fine-tuning resulted in new MOF materials thus far inaccessible through conventional synthesis routes. Furthermore, by varying the linker ratio, the water sorption properties can be continuously adjusted while retaining the sigmoidal isotherm shape advantageous for heat transformation applications.

Metal-Organic Frameworks

2021 ◽  
Author(s):  
Lars Öhrström ◽  
Francoise M. Amombo Noa
Keyword(s):  
Metal Organic Frameworks ◽  
Metal Organic

Substrate templated synthesis of single-phase and uniform Zr-porphyrin-based metal–organic frameworks

2020 ◽  
Vol 7 (1) ◽  
pp. 221-231
Author(s):  
Seong Won Hong ◽  
Ju Won Paik ◽  
Dongju Seo ◽  
Jae-Min Oh ◽  
Young Kyu Jeong ◽  
...  
Keyword(s):  
Chemical Bath Deposition ◽  
Single Phase ◽  
Metal Organic Frameworks ◽  
Templated Synthesis ◽  
Pore Structures ◽  
Phase Pure ◽  
Metal Organic ◽  
Cbd Method

We successfully demonstrate that the chemical bath deposition (CBD) method is a versatile method for synthesizing phase-pure and uniform MOFs by controlling their nucleation stages and pore structures.

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