scholarly journals Tuning the Gate Opening Pressure of Metal–Organic Frameworks (MOFs) for the Selective Separation of Hydrocarbons

2012 ◽  
Vol 134 (37) ◽  
pp. 15201-15204 ◽  
Author(s):  
Nour Nijem ◽  
Haohan Wu ◽  
Pieremanuele Canepa ◽  
Anne Marti ◽  
Kenneth J. Balkus ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Selective Separation ◽  
Opening Pressure ◽  
Gate Opening ◽  
Metal Organic

Two urea-functionalized pcu metal–organic frameworks based on a pillared-layer strategy for gas adsorption and separation

2020 ◽  
Vol 7 (18) ◽  
pp. 3500-3508 ◽  
Author(s):  
Junyi Qiao ◽  
Xueshibojie Liu ◽  
Xin Liu ◽  
Xinyao Liu ◽  
Lirong Zhang ◽  
...  
Keyword(s):  
Gas Adsorption ◽  
Metal Organic Frameworks ◽  
Gate Opening ◽  
Metal Organic ◽  
Functionalized Ligands ◽  
Bold Type

Two pcu type Cu-MOFs based on urea-functionalized ligands have been synthesized by a pillared-layer strategy. Compound 1 shows good adsorption and separation behaviors of CO2, C2H6, and C3H8 over CH4, compound 2 exhibits a gate-opening behavior for N2 adsorption.

scholarly journals Identifying the Role of Terahertz Vibrations in Metal-Organic Frameworks: From Gate-Opening Phenomenon to Shear-Driven Structural Destabilization

2014 ◽  
Vol 113 (21) ◽  
Author(s):  
Matthew R. Ryder ◽  
Bartolomeo Civalleri ◽  
Thomas D. Bennett ◽  
Sebastian Henke ◽  
Svemir Rudić ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Gate Opening ◽  
Metal Organic

Control of interpenetration in S-containing metal–organic frameworks for selective separation of transition metal ions

2013 ◽  
Vol 49 (11) ◽  
pp. 1088 ◽  
Author(s):  
Guang-Sheng Yang ◽  
Zhong-Ling Lang ◽  
Hong-Ying Zang ◽  
Ya-Qian Lan ◽  
Wen-Wen He ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Metal Organic Frameworks ◽  
Transition Metal Ions ◽  
Selective Separation ◽  
Metal Organic

Three stable dinuclear [M2(OH)0.5(NO3)0.5(RCOO)2(RN)4] (M = Cu, Ni) based metal–organic frameworks with high CO2 adsorption and selective separation for O2/N2 and C3H8/CH4

2020 ◽  
Vol 7 (3) ◽  
pp. 731-736 ◽  
Author(s):  
Liang Kan ◽  
Lan Li ◽  
Guanghua Li ◽  
Lirong Zhang ◽  
Yunling Liu
Keyword(s):  
Co2 Adsorption ◽  
Metal Organic Frameworks ◽  
Selective Separation ◽  
High Density ◽  
High Co2 ◽  
Metal Organic

Three isostructural and stable MOFs have been constructed. All the three compounds with high-density OMSs exhibit high performances for CO2 capture and selective separation.

Engineering Isoreticular 2D Metal–Organic Frameworks with Inherent Structural Flexibility

2017 ◽  
Vol 70 (5) ◽  
pp. 566 ◽  
Author(s):  
Alexandre Burgun ◽  
Witold M. Bloch ◽  
Christian J. Doonan ◽  
Christopher J. Sumby
Keyword(s):  
Metal Organic Frameworks ◽  
Mixed Valence ◽  
Chemical Properties ◽  
Fine Tuning ◽  
Gate Opening ◽  
Sterically Demanding ◽  
Metal Organic ◽  
Structure Metrics ◽  
Physical And Chemical ◽  
And Chemical Properties

The chemical mutability of metal–organic frameworks (MOFs) is an advantageous feature that allows fine-tuning of their physical and chemical properties. Herein, we report the successful isoreticulation of a MOF with an outstanding gas selectivity for CO2 versus N2: [Cu(L1)(H2O)]·xS (CuL1), where H2L1 = bis(4-(4-carboxyphenyl)-1H-pyrazolyl)methane) and S = solvate. By modifying the steric bulk and length of the original ligand, we synthesised three new MOFs with 2D networks isoreticular to CuL1, namely [Cu(L1Me)(H2O)]·xS (CuL1Me), [Cu(L2)(H2O)]·xS (CuL2), and [Cu(L2Me)(H2O)]·xS (CuL2Me) (where H2L1Me = bis(4-(4-carboxyphenyl)-3,5-dimethyl-1H-pyrazolyl)methane, H2L2 = bis(4-(4-carboxyphenyl)-(ethyne-2,1-yl)-1H-pyrazolyl)methane, and H2L2Me = bis(4-(4-carboxyphenyl)-(ethyne-2,1-yl)-3,5-dimethyl-1H-pyrazolyl)methane). Depending on the steric hindrance and structure metrics of the organic links, staggered and eclipsed arrangements of 2D 44 net layers were obtained. The anisotropy of the pore dimensions is proportional to the linker length (L2 and L2Me), which when increased, renders these materials non-porous. However, the more sterically demanding ligand L1Me gives a material that shows gate-opening behaviour in response to a CO2 absorbate. The synthesis and structure of an unexpected mixed-valence CuII/CuI 3D MOF, Cu3[Cu(L2Me)2]2(H2O)4]·xS (Cu5(L2Me)4), containing an unusual trimeric CuII node are also reported.

Dynamic metal–organic frameworks for the separation of hydrogen isotopes

2020 ◽  
Vol 49 (46) ◽  
pp. 16617-16622
Author(s):  
Zhanfeng Ju ◽  
El-Sayed M. El-Sayed ◽  
Daqiang Yuan
Keyword(s):  
Structural Transformation ◽  
Hydrogen Isotope ◽  
Isotope Separation ◽  
Metal Organic Frameworks ◽  
Hydrogen Isotopes ◽  
Gate Opening ◽  
Metal Organic ◽  
Reversible Structural Transformation ◽  
Or Gate

Reversible structural transformation along with breathing effect or gate-opening phenomena in some dynamic MOFs provide opportunity to operate or to enhance kinetic quantum sieving (KQS) for hydrogen isotope separation.

Gate-Opening Mechanism of Hydrophilic–Hydrophobic Metal–Organic Frameworks: Molecular Simulations and Quasi-Equilibrated Desorption

2018 ◽  
Vol 30 (15) ◽  
pp. 5116-5127 ◽  
Author(s):  
Andrzej Sławek ◽  
José Manuel Vicent-Luna ◽  
Bartosz Marszałek ◽  
Barbara Gil ◽  
Russell E. Morris ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Molecular Simulations ◽  
Gate Opening ◽  
Metal Organic
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