Abstract
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.
Original language | English (US) |
---|---|
Pages (from-to) | 10326-10338 |
Number of pages | 13 |
Journal | Chemistry of Materials |
Volume | 29 |
Issue number | 24 |
DOIs | |
State | Published - Dec 26 2017 |
Bibliographical note
Publisher Copyright:© 2017 American Chemical Society.
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Materials Chemistry
Fingerprint
Dive into the research topics of 'Revisiting the Aluminum Trimesate-Based MOF (MIL-96): From Structure Determination to the Processing of Mixed Matrix Membranes for CO2 Capture'. Together they form a unique fingerprint.Datasets
-
CCDC 1558833: Experimental Crystal Structure Determination : catena-[hexakis(mu-benzene-1,3,5-tricarboxylato)-dodecakis(mu-hydroxo)-(mu-oxo)-pentaaqua-tetrakis(hydroxy)-dodeca-aluminium hydrate]
Benzaqui, M. (Creator), S. Pillai, R. (Creator), Sabetghadam, A. (Creator), Benoit, V. (Creator), Normand, P. (Creator), Marrot, J. (Creator), Menguy, N. (Creator), Montero, D. (Creator), Shepard, W. (Creator), Tissot, A. (Creator), Martineau-Corcos, C. (Creator), Sicard, C. (Creator), Mihaylov, M. (Creator), Carn, F. (Creator), Beurroeis, I. (Creator), Llewellyn, P. L. (Creator), De Weireld, G. (Creator), Hadjiivanov, K. (Creator), Gascon, J. (Creator), Kapteijn, F. (Creator), Maurin, G. (Creator), Steunou, N. (Creator), Serre, C. (Creator), Benzaqui, M. (Creator), S. Pillai, R. (Creator), Sabetghadam, A. (Creator), Benoit, V. (Creator), Normand, P. (Creator), Marrot, J. (Creator), Menguy, N. (Creator), Montero, D. (Creator), Shepard, W. (Creator), Tissot, A. (Creator), Martineau-Corcos, C. (Creator), Sicard, C. (Creator), Mihaylov, M. (Creator), Carn, F. (Creator), Beurroeis, I. (Creator), Llewellyn, P. L. (Creator), De Weireld, G. (Creator), Hadjiivanov, K. (Creator), Kapteijn, F. (Creator), Maurin, G. (Creator), Steunou, N. (Creator), Serre, C. (Creator), Benzaqui, M. (Creator), S. Pillai, R. (Creator), Sabetghadam, A. (Creator), Benoit, V. (Creator), Normand, P. (Creator), Marrot, J. (Creator), Menguy, N. (Creator), Montero, D. (Creator), Shepard, W. (Creator), Tissot, A. (Creator), Martineau-Corcos, C. (Creator), Sicard, C. (Creator), Mihaylov, M. (Creator), Carn, F. (Creator), Beurroeis, I. (Creator), Llewellyn, P. L. (Creator), De Weireld, G. (Creator), Hadjiivanov, K. (Creator), Kapteijn, F. (Creator), Maurin, G. (Creator), Steunou, N. (Creator) & Serre, C. (Creator), Cambridge Crystallographic Data Centre, 2018
DOI: 10.5517/ccdc.csd.cc1pb2y1, http://hdl.handle.net/10754/664000
Dataset