scholarly journals Stepwise collapse of a giant pore metal–organic framework

2021 ◽  
Vol 50 (14) ◽  
pp. 5011-5022 ◽  
Author(s):  
Adam F. Sapnik ◽  
Duncan N. Johnstone ◽  
Sean M. Collins ◽  
Giorgio Divitini ◽  
Alice M. Bumstead ◽  
...  

Defect engineering is used to augment the porosity of MIL-100. Incorporation of defects leads to structural collapse and ultimately causes amorphisation. Pair distribution function analysis reveals a stepwise collapse of the hierarchical structure.

2020 ◽  
Author(s):  
Adam Sapnik ◽  
Duncan Johnstone ◽  
Sean M. Collins ◽  
Giorgio Divitini ◽  
Alice Bumstead ◽  
...  

<p>Defect engineering is a powerful tool that can be used to tailor the properties of metal–organic frameworks (MOFs). Here, we incorporate defects through ball milling to systematically vary the porosity of the giant pore MOF, MIL-100 (Fe). We show that milling leads to the breaking of metal–linker bonds, generating more coordinatively unsaturated metal sites, and ultimately causes amorphisation. Pair distribution function analysis shows the hierarchical local structure is partially</p><p>retained, even in the amorphised material. We find that the solvent toluene stabilises the MIL-100 (Fe) framework against collapse and leads to a substantial rentention of porosity over the non-stabilised material.</p>


2014 ◽  
Vol 43 (27) ◽  
pp. 10438-10442 ◽  
Author(s):  
M. Infas Mohideen ◽  
Phoebe K. Allan ◽  
Karena W. Chapman ◽  
Joseph A. Hriljac ◽  
Russell E. Morris

Pair distribution function analysis has been used to solve the structure of a coordination polymer material formed by ultrasound treatment of a metal–organic framework.


2020 ◽  
Author(s):  
Adam Sapnik ◽  
Duncan Johnstone ◽  
Sean M. Collins ◽  
Giorgio Divitini ◽  
Alice Bumstead ◽  
...  

<p>Defect engineering is a powerful tool that can be used to tailor the properties of metal–organic frameworks (MOFs). Here, we incorporate defects through ball milling to systematically vary the porosity of the giant pore MOF, MIL-100 (Fe). We show that milling leads to the breaking of metal–linker bonds, generating more coordinatively unsaturated metal sites, and ultimately causes amorphisation. Pair distribution function analysis shows the hierarchical local structure is partially</p><p>retained, even in the amorphised material. We find that the solvent toluene stabilises the MIL-100 (Fe) framework against collapse and leads to a substantial rentention of porosity over the non-stabilised material.</p>


Nanoscale ◽  
2020 ◽  
Vol 12 (29) ◽  
pp. 15577-15587 ◽  
Author(s):  
Celia Castillo-Blas ◽  
José María Moreno ◽  
Ignacio Romero-Muñiz ◽  
Ana E. Platero-Prats

Pair distribution function, PDF, analyses are emerging as a powerful tool to characterize non-ideal metal–organic framework (MOF) materials with compromised ordering.


2012 ◽  
Vol 3 (8) ◽  
pp. 2559 ◽  
Author(s):  
Phoebe K. Allan ◽  
Karena W. Chapman ◽  
Peter J. Chupas ◽  
Joseph A. Hriljac ◽  
Catherine L. Renouf ◽  
...  

2016 ◽  
Vol 28 (11) ◽  
pp. 3749-3761 ◽  
Author(s):  
Greig C. Shearer ◽  
Sachin Chavan ◽  
Silvia Bordiga ◽  
Stian Svelle ◽  
Unni Olsbye ◽  
...  

ChemSusChem ◽  
2015 ◽  
Vol 8 (5) ◽  
pp. 878-885 ◽  
Author(s):  
Zhuo-Rui Jiang ◽  
Hengwei Wang ◽  
Yingli Hu ◽  
Junling Lu ◽  
Hai-Long Jiang

Catalysts ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 318 ◽  
Author(s):  
Tian Zhao ◽  
Hexin Zhu ◽  
Ming Dong

MIL-101(Cr), as a prototypical mesoporous metal–organic framework (MOF), can be facially prepared by involving different modulators to fit various demands. In this paper, a range of MIL-101(Cr) products were prepared under similar conditions. It was found that one of the additives, phenylphosphonic acid (PPOA), could give a stable hierarchical structure material. Compared to other MIL-101(Cr)s, though hierarchical MIL-101(Cr) showed less porosity, it gave a better catalytic performance in the oxidation of indene and 1-dodecene.


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