Ordered macro-microporous metal-organic framework single crystals

Science ◽  
2018 ◽  
Vol 359 (6372) ◽  
pp. 206-210 ◽  
Author(s):  
Kui Shen ◽  
Lei Zhang ◽  
Xiaodong Chen ◽  
Lingmei Liu ◽  
Daliang Zhang ◽  
...  
Keyword(s):  
Single Crystals ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Single Crystalline ◽  
Metal Organic ◽  
Crystalline Nature ◽  
Opening Up ◽  
Diffusion Properties ◽  
Organic Framework

We constructed highly oriented and ordered macropores within metal-organic framework (MOF) single crystals, opening up the area of three-dimensional–ordered macro-microporous materials (that is, materials containing both macro- and micropores) in single-crystalline form. Our methodology relies on the strong shaping effects of a polystyrene nanosphere monolith template and a double-solvent–induced heterogeneous nucleation approach. This process synergistically enabled the in situ growth of MOFs within ordered voids, rendering a single crystal with oriented and ordered macro-microporous structure. The improved mass diffusion properties of such hierarchical frameworks, together with their robust single-crystalline nature, endow them with superior catalytic activity and recyclability for bulky-molecule reactions, as compared with conventional, polycrystalline hollow, and disordered macroporous ZIF-8.

scholarly journals Azide-Based High-Energy Metal-Organic Framework with Enhanced Thermal Stability

2018 ◽  
Author(s):  
Ignacio Chi-Duran ◽  
Carolina Manquian ◽  
Daniel Serafini ◽  
javier enriquez ◽  
Felipe Herrera ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
High Energy ◽  
Measured Velocity ◽  
Energetic Properties ◽  
Dsc Measurements ◽  
Metal Organic ◽  
Tga And Dsc ◽  
Organic Framework

<p>We report the synthesis of Zn(C6H4N5)N3, a new three-dimensional metal-organic framework (MOF) that exhibits strong energetic properties with high thermostability. The compound is synthesized by the hydrothermal method with <i>in situ</i> ligand formation under controlled pH. Structural characterization is carried out by single-crystal XRD, elemental analysis and FTIR. Energetic properties are obtained from TGA and DSC measurements. This novel MOF structure is thermally stable up to 345 C and its heat of detonation is -400$ kJ/g. The measured velocity and pressure of detonation are 4.66 km/s and 9.99 GPa, respectively.</p>

Heterometallic metal–organic framework nanocages of high crystallinity: an elongated channel structure formed in situ through metal-ion (M = W or Mo) doping

2018 ◽  
Vol 6 (46) ◽  
pp. 23336-23344 ◽  
Author(s):  
Jinxin Wei ◽  
Niancai Cheng ◽  
Zhiyu Liang ◽  
Yufeng Wu ◽  
Zhigang Zou ◽  
...  
Keyword(s):  
Single Crystals ◽  
Metal Ion ◽  
Metal Organic Framework ◽  
Channel Structure ◽  
High Crystallinity ◽  
Mo Doping ◽  
Metal Organic ◽  
Organic Framework

Incorporation of WO42− or MoO42− finely caved the inside of UiO-66 single crystals, creating W or Mo doped UiO-66 nanocages with a channel structure.

scholarly journals Azide-Based High-Energy Metal-Organic Framework with Enhanced Thermal Stability

2018 ◽  
Author(s):  
Ignacio Chi-Duran ◽  
Carolina Manquian ◽  
Daniel Serafini ◽  
javier enriquez ◽  
Felipe Herrera ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Three Dimensional ◽  
High Energy ◽  
Measured Velocity ◽  
Energetic Properties ◽  
Dsc Measurements ◽  
Metal Organic ◽  
Tga And Dsc ◽  
Organic Framework

<p>We report the synthesis of Zn(C6H4N5)N3, a new three-dimensional metal-organic framework (MOF) that exhibits strong energetic properties with high thermostability. The compound is synthesized by the hydrothermal method with <i>in situ</i> ligand formation under controlled pH. Structural characterization is carried out by single-crystal XRD, elemental analysis and FTIR. Energetic properties are obtained from TGA and DSC measurements. This novel MOF structure is thermally stable up to 345 C and its heat of detonation is -400$ kJ/g. The measured velocity and pressure of detonation are 4.66 km/s and 9.99 GPa, respectively.</p>

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