scholarly journals Paralyzed membrane: Current-driven synthesis of a metal-organic framework with sharpened propene/propane separation

2018 ◽  
Vol 4 (10) ◽  
pp. eaau1393 ◽  
Author(s):  
Sheng Zhou ◽  
Yanying Wei ◽  
Libo Li ◽  
Yifan Duan ◽  
Qianqian Hou ◽  
...  
Keyword(s):  
Large Scale ◽  
Metal Organic Framework ◽  
Great Promise ◽  
Cubic Phase ◽  
Membrane Composition ◽  
Zeolitic Imidazolate Framework ◽  
Metal Organic ◽  
Dynamics Simulations ◽  
Molecular Sieving ◽  
Organic Framework

Metal-organic framework (MOF) membranes show great promise for propene/propane separation, yet a sharp molecular sieving has not been achieved due to their inherent linker mobility. Here, zeolitic imidazolate framework ZIF-8–type membranes with suppressed linker mobility are prepared by a fast current–driven synthesis (FCDS) strategy within 20 min, showing sharpened molecular sieving for propene/propane separation with a separation factor above 300. During membrane synthesis, the direct current promotes the metal ions and ligands to assemble into inborn-distorted and stiffer frameworks with ZIF-8_Cm (a newly discovered polymorph of ZIF-8) accounting for 60 to 70% of the membrane composition. Molecular dynamics simulations further verify that ZIF-8_Cm is superior to ZIF-8_I 4¯3m (the common cubic phase) for propene/propane separation. FCDS holds great potential to produce high-quality, ultrathin MOF membranes on a large scale.

Bond switching is responsible for nanoductility in zeolitic imidazolate framework glasses

2021 ◽  
Author(s):  
Theany To ◽  
Søren S. Sørensen ◽  
Yuanzheng Yue ◽  
Morten M Smedskjaer
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Fracture Mechanism ◽  
Metal Organic Framework ◽  
Zeolitic Imidazolate Framework ◽  
Reactive Molecular Dynamics ◽  
Metal Organic ◽  
Dynamics Simulations ◽  
Organic Framework

Understanding of the fracture mechanism of metal-organic framework glasses remains limited. Using reactive molecular dynamics simulations, we here find that three zeolitic imidazolate framework glasses exhibit pronounced nanoductility upon fracture....

One-step solid-state thermolysis of a metal–organic framework: a simple and facile route to large-scale of multiwalled carbon nanotubes

2008 ◽  
pp. 1581 ◽  
Author(s):  
Linyun Chen ◽  
Junfeng Bai ◽  
Chunzhao Wang ◽  
Yi Pan ◽  
Manfred Scheer ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solid State ◽  
Multiwalled Carbon Nanotubes ◽  
Large Scale ◽  
Metal Organic Framework ◽  
Multiwalled Carbon ◽  
Metal Organic ◽  
One Step ◽  
Facile Route ◽  
Organic Framework

Metal–organic framework-derived CoSe2/(NiCo)Se2 box-in-box hollow nanocubes with enhanced electrochemical properties for sodium-ion storage and hydrogen evolution

2017 ◽  
Vol 5 (35) ◽  
pp. 18823-18830 ◽  
Author(s):  
Seung-Keun Park ◽  
Jin Koo Kim ◽  
Yun Chan Kang
Keyword(s):  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Metal Organic Framework ◽  
Sodium Ion ◽  
Zeolitic Imidazolate Framework ◽  
Box Structures ◽  
Ion Storage ◽  
Metal Organic ◽  
Sodium Ion Storage ◽  
Organic Framework

Multishell structured metal selenide nanocubes, namely, Co/(NiCo)Se2 box-in-box structures with different shell compositions, were successfully synthesized by applying zeolitic imidazolate framework-67 (ZIF-67) as a template.

Metal-organic framework nanosheets as building blocks for molecular sieving membranes

Science ◽  
2014 ◽  
Vol 346 (6215) ◽  
pp. 1356-1359 ◽  
Author(s):  
Y. Peng ◽  
Y. Li ◽  
Y. Ban ◽  
H. Jin ◽  
W. Jiao ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Building Blocks ◽  
Metal Organic ◽  
Molecular Sieving ◽  
Organic Framework

Photo-switchable smart metal–organic framework membranes with tunable and enhanced molecular sieving performance

2018 ◽  
Vol 6 (48) ◽  
pp. 24949-24955 ◽  
Author(s):  
Chuanyao Liu ◽  
Yunzhe Jiang ◽  
Chen Zhou ◽  
Jürgen Caro ◽  
Aisheng Huang
Keyword(s):  
Separation Factor ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Molecular Sieving ◽  
Organic Framework

A novel photo-switchable Cu(AzDC)(4,4′-BPE)0.5 membrane was developed with the H2/CO2 separation factor being switched reversibly between 21.3 and 43.7 after irradiation with Vis light (455 nm) and UV (365 nm).

Mild and large-scale synthesis of nanoscale metal-organic framework used as a potential adenine-based drug nanocarrier

2020 ◽  
pp. 102135 ◽  
Author(s):  
Trang Thi Thu Nguyen ◽  
Linh Ho Thuy Nguyen ◽  
Ngoc Xuan Dat Mai ◽  
Hanh Kieu Thi Ta ◽  
Thi Lien Thuong Nguyen ◽  
...  
Keyword(s):  
Large Scale ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Large Scale Synthesis ◽  
Organic Framework
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