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  4. Reticular chemistry for the rational design of mechanically robust mesoporous merged-net metal-organic frameworks
 
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research article

Reticular chemistry for the rational design of mechanically robust mesoporous merged-net metal-organic frameworks

Jiang, Hao
•
Moosavi, Seyed Mohamad  
•
Czaban-Jozwiak, Justyna
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January 4, 2023
Matter

Access to metal-organic frameworks (MOFs) with enhanced me-chanical stability is key to their successful deployment in practical applications. However, the high porosity of the material often af-fects mechanical stability. In this article, to achieve highly porous MOFs with enhanced mechanical stability, we explored the merged-net approach where two relatively fragile frameworks were merged into a robust MOF structure. We demonstrate the effectiveness of this approach by computationally evaluating me-chanical properties of sph-MOFs with varying lengths of linkers. Prominently, we pinpoint the significance of triangular rigidity on the robustness of large-pore MOFs and, subsequently, designed and synthesized a rare earth (RE)-based RE-sph-MOF-5 by the retic-ulation of hexanuclear RE clusters, tritopic linkers, and unprecedent-edly large planar hexatopic linkers containing 19 phenyl rings. The mechanical properties of sph-MOFs were characterized and quanti-fied using amplitude-frequency modulation (AM-FM) bimodal atomic force microscopy (AFM) analyses. Markedly, the mesoporous RE-sph-MOF-5 expresses high mechanical stability despite its large mesoporous cavities.

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Type
research article
DOI
10.1016/j.matt.2022.10.004
Web of Science ID

WOS:001029732800001

Author(s)
Jiang, Hao
•
Moosavi, Seyed Mohamad  
•
Czaban-Jozwiak, Justyna
•
Torre, Bruno
•
Shkurenko, Aleksander
•
Ameur, Zied Ouled
•
Jia, Jiangtao
•
Alsadun, Norah
•
Shekhah, Osama
•
Di Fabrizio, Enzo
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Date Issued

2023-01-04

Publisher

CELL PRESS

Published in
Matter
Volume

6

Issue

1

Start page

285

End page

295

Subjects

Materials Science, Multidisciplinary

•

Materials Science

•

force-field

•

stability

•

construction

•

crystals

•

co2

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSMO  
Available on Infoscience
August 14, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/199804
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