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research article

Densification and shaping of pure Cu-BTC powders using a solid-state chemical transformation

Karve, Vikram Vinayak  
•
Mabillard, Alexandre
•
Marti, Jordi Espin  
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May 1, 2024
Materials Research Express

MOFs are a class of porous crystalline materials whose unique properties have led to applicability in several fields ranging from gas adsorption to drug delivery. Despite their high potential, MOFs are usually found as fine powders, a property that can limit their use in industrial applications. Here, a novel approach is proposed to form densified Cu-MOF (Cu-BTC) powders and monoliths using 1,2-ethanedisulfonic acid (EDSA) as a densification agent. A MOF/EDSA mixture was heated to similar to 150 degrees C; the molten EDSA not only promotes the growth of larger MOF crystallites, but also stimulates condensation reactions between the carboxylate-based MOF ligands, further binding the particles together. When this reaction was done in a stainless-steel die under pressure MOF-based monoliths could also be formed. Notably, using this approach, the MOF had a higher density, significantly improving the volumetric CO2 adsorption capacity. We believe this contribution provides the basis for future work wherein the intrinsic MOF particle surfaces can be selectively engineered to improve their properties towards shaping for industrial applications.

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Type
research article
DOI
10.1088/2053-1591/ad48db
Web of Science ID

WOS:001225584100001

Author(s)
Karve, Vikram Vinayak  
Mabillard, Alexandre
Marti, Jordi Espin  
Asgari, Mehrdad  
Queen, Wendy L.  
Soutrenon, Mathieu
Date Issued

2024-05-01

Publisher

Iop Publishing Ltd

Published in
Materials Research Express
Volume

11

Issue

5

Article Number

055511

Subjects

Technology

•

Metal-Organic Frameworks

•

Mesoporous Materials

•

Monoliths

•

Co2 Capture

•

Powder Densification

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LFIM  
FunderGrant Number

Haute cole Spcialise de Suisse Occidentale https://doi.org/10.13039/501100010743

HES-SO

degrees114967

Projet jeunes chercheurs, 3DP-SPC

Available on Infoscience
June 5, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/208400
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