関連する実験動画

Updated: Jan 20, 2026

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Published on: August 30, 2024

Cu(I)-MOF-74のメカノケミカル合成によるエチレン/エタン分離の改善

Reza Pirdadeh Beiranvand¹, Saeed Ovaysi¹

¹Faculty of Petroleum and Chemical Engineering, Razi University, Tagh-e Bostan, Kermanshah 67144-14971, Iran.

|January 19, 2026

Abstract:

A new metal-organic framework (MOF), i.e., Cu-(I)-MOF-74, is developed to selectively adsorb ethylene in ethylene-ethane gas mixtures. This new MOF is synthesized through the mechanochemical reaction between 2,5-dihydroxyterephthalic acid (DHTA) and cuprous oxide. The mechanochemical reactions between Cu₂O and DHTA at various ratios are investigated to determine the exact stoichiometry of the reaction. Using the XRD patterns of the synthesized MOF, we identified a 2:1 molar ratio of Cu₂O/DHTA as the correct reaction stoichiometry. The synthesized Cu-(I)-MOF-74 is stable up to 163 °C as evidenced by its thermogravimetric analysis, and has a 1371 m²/g BET surface area. Also, the adsorption isotherms of ethylene and ethane on this MOF are measured at 278, 298, 313, and 353 K. Finally, the isosteric heats of adsorption of ethylene and ethane on Cu-(I)-MOF-74 are calculated, and using the ideal adsorption solution theory (IAST), adsorption selectivities at the four above-mentioned temperatures are calculated.

キーワード:

金属有機構造体 MOF-74 メカノケミカル合成エチレンエタンガス分離吸着選択性 Cu(I)-MOF-74 材料科学

さらに関連する動画

Heterogeneous Catalytic Reactor and Hydrogenation of Ethylene

Heterogeneous Catalytic Reactor and Hydrogenation of Ethylene

Published on: April 30, 2023

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs

Published on: January 17, 2020

関連する概念動画

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics

Here, we present a protocol to synthesize two metal chalcogenides (Cu1.8S and SnSe) suitable for thermoelectrics via an ultrafast (second-range), solvent-free, and one-step mechanochemical synthesis using elemental precursors. Simultaneously, we demonstrate the monitoring of the temperature in the jar during planetary ball milling in situ by the newly developed device.

Catalytic Reactor: Hydrogenation of Ethylene

Catalytic Reactor: Hydrogenation of Ethylene

Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA
The hydrogenation of ethylene (C2H4) to ethane (C2H6) has often been studied as a model reduction reaction in characterizing new metal catalysts.1-2 While supported nickel is not the most active metal catalyst for this reaction, it is active enough that reaction can take place at < 200°C.
The reaction typically involves adsorbed, dissociated hydrogen (H2)...

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Here, we present a protocol for active site validation of metal-organic framework catalysts by comparing stoichiometric and catalytic carbonyl-ene reactions to find out whether a reaction takes place on the inner or outer surface of metal-organic...

Conformations of Ethane and Propane

Conformations of Ethane and Propane

In an organic molecule, free rotation about the carbon-carbon single bond results in energetically different conformers of the molecule. Due to this rotation, called the internal rotation, ethane has two major conformations — staggered and eclipsed.
Staggered conformation is a low energy and more stable conformation with the C-H bonds on the front carbon placed at 60°dihedral angles relative to the C-H bonds on the back carbon, leading to a reduced torsional strain. In staggered...

Investigating the Bacterial Response to Ethylene Using an Ethylene-Releasing Compound

Investigating the Bacterial Response to Ethylene Using an Ethylene-Releasing Compound

Source: Augimeri, R. V. et. al., Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria. J. Vis. Exp. (2016)This video demonstrates the effect of ethylene generated by 2-chloroethylphosphonic acid (CEPA) on bacterial growth and cellulose production. Ethylene activates signaling pathways that stimulate cellulose synthesis, resulting in enhanced pellicle formation. These results highlight the bacterial response to...

Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria

Utilizing the Ethylene-releasing Compound, 2-Chloroethylphosphonic Acid, as a Tool to Study Ethylene Response in Bacteria

The protocols outlined herein facilitate the convenient investigation of bacterial ethylene responses by utilizing 2-chloroethylphosphonic acid (CEPA). Ethylene is produced in situ through the decomposition of CEPA in an aqueous bacterial growth medium, circumventing the requirement for pure ethylene gas.