Revisiting the Aluminum Trimesate-Based MOF (MIL-96)

Revisiting the Aluminum Trimesate-Based MOF (MIL-96): From Structure Determination to the Processing of Mixed Matrix Membranes for CO₂ Capture

Benzaqui, Marvin (Institut Lavoisier de Versailles; ENS-PSL Research University & CNRS)
Pillai, Renjith S. (Institut Charles Gerhardt Montpellier)
Sabetghadam, A. (TU Delft ChemE/Catalysis Engineering)
Benoit, Virginie (Aix Marseille Université)
Normand, Perine (Université de Mons)
Marrot, Jérôme (Institut Lavoisier de Versailles)
Menguy, Nicolas (Universite Pierre et Marie Curie (UPMC))
Montero, David (Universite Pierre et Marie Curie (UPMC))
Shepard, William (L'Orme les Merisiers Saint-Aubin)
Tissot, Antoine (Institut Lavoisier de Versailles; ENS-PSL Research University & CNRS)
Martineau-Corcos, Charlotte (Institut Lavoisier de Versailles; Université d'Orléans)
Sicard, Clémence (Institut Lavoisier de Versailles)
Mihaylov, Mihail (Bulgarian Academy of Sciences)
Carn, Florent (Universite Paris Diderot)
Beurroies, Isabelle (Aix Marseille Université)
Llewellyn, Philip L. (Aix Marseille Université)
De Weireld, Guy (Université de Mons)
Hadjiivanov, Konstantin (Bulgarian Academy of Sciences)
Gascon, Jorge (TU Delft ChemE/Catalysis Engineering; King Abdullah University of Science and Technology)
Kapteijn, F. (TU Delft ChemE/Catalysis Engineering)
Maurin, Guillaume (Institut Charles Gerhardt Montpellier)
Steunou, Nathalie (Institut Lavoisier de Versailles)
Serre, Christian (Institut Lavoisier de Versailles; ENS-PSL Research University & CNRS)

2017-12-26

A microporous Al trimesate-based metal-organic framework (MOF), denoted MIL-96-(Al), was selected as a porous hybrid filler for the processing of mixed matrix membranes (MMMs) for CO₂/N₂ postcombustion separation. First, the structural model of MIL-96-(Al) initially reported was revisited using a combination of synchrotron-based single-crystal X-ray diffraction, solid-state nuclear magnetic resonance spectroscopy, and density functional theory (DFT) calculations. In a second step, pure MIL-96-(Al) crystals differing by their size and aspect ratio, including anisotropic hexagonal platelets and nanoparticles of about 70 nm in diameter, were prepared. Then, a combination of in situ IR spectroscopy, single-gas, and CO₂/N₂ coadsorption experiments, calorimetry, and molecular simulations revealed that MIL-96-(Al) nanoparticles show a relatively high CO₂ affinity over N₂ owing to strong interactions between CO₂ molecules and several adsorption sites such as Al³⁺ Lewis centers, coordinated water, and hydroxyl groups. Finally, the high compatibility between MIL-96-(Al) nanoparticles and the 6FDA-DAM polymer allowed the processing of homogeneous and defect-free MMMs with a high MOF loading (up to 25 wt %) that outperform pure polymer membranes for CO₂/N₂ separation.

http://resolver.tudelft.nl/uuid:643d07bf-475a-43bc-b325-9b76ff9fd65c

https://doi.org/10.1021/acs.chemmater.7b03203

2018-11-08

0897-4756

Chemistry of Materials, 29 (24), 10326-10338

Institutional Repository

journal article

© 2017 Marvin Benzaqui, Renjith S. Pillai, A. Sabetghadam, Virginie Benoit, Perine Normand, Jérôme Marrot, Nicolas Menguy, David Montero, William Shepard, Antoine Tissot, Charlotte Martineau-Corcos, Clémence Sicard, Mihail Mihaylov, Florent Carn, Isabelle Beurroies, Philip L. Llewellyn, Guy De Weireld, Konstantin Hadjiivanov, Jorge Gascon, F. Kapteijn, Guillaume Maurin, Nathalie Steunou, Christian Serre