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MIL-91(Ti), a small pore metal-organic framework which fulfils several criteria : an upscaled green synthesis, excellent water stability, high CO2 selectivity and fast CO2 transport

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Date
28/01/2016
Author
Benoit, Virginie
Pillai, Renjith S.
Orsi, Angelica
Normand, Périne
Jobic, Hervé
Nouar, Farid
Billemont, Pierre
Bloch, Emily
Bourrelly, Sandrine
Devic, Thomas
Wright, Paul A.
De Weireld, Guy
Serre, Christian
Maurin, Guillaume
Llewellyn, Philip L.
Keywords
Metal-organic frameworks
Titanium
Green synthesis
CO2 capture
Co-adsorption
Molecular simulations
QD Chemistry
Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)
NDAS
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Abstract
A multidisciplinary approach combining advanced experimental and modelling tools was undertaken to characterize the promises of a small-pore type Ti-based metal-organic framework, MIL-91(Ti) for CO2 capture. This material was prepared using two synthesis strategies, i.e. under hydrothermal conditions and under reflux, and its single component adsorption behaviour with respect to CO2, CH4 and N2 was first revealed by gravimetry measurements. This hydrophilic and highly water stable MOF is characterized by a relatively high CO2 adsorption enthalpy. Molecular simulations combined with in situ powder X-ray diffraction evidenced that this is due to the combined interaction of this probe with N-H and P-O groups in the phosphonate linker. High CO2 selectivities in the presence of either N2 or CH4 were also predicted and confirmed by co-adsorption measurements. The possibility to prepare this sample under reflux represents an environmentally friendly route which can easily be upscaled. This green synthesis route, excellent water stability, high selectivities and relatively fast transport kinetics of CO2 are significant points rendering this sample of utmost interest for CO2 capture.
Citation
Benoit , V , Pillai , R S , Orsi , A , Normand , P , Jobic , H , Nouar , F , Billemont , P , Bloch , E , Bourrelly , S , Devic , T , Wright , P A , De Weireld , G , Serre , C , Maurin , G & Llewellyn , P L 2016 , ' MIL-91(Ti), a small pore metal-organic framework which fulfils several criteria : an upscaled green synthesis, excellent water stability, high CO 2 selectivity and fast CO 2 transport ' , Journal of Materials Chemistry A , no. 4 , pp. 1383-1389 . https://doi.org/10.1039/c5ta09349j
Publication
Journal of Materials Chemistry A
Status
Peer reviewed
DOI
https://doi.org/10.1039/c5ta09349j
ISSN
2050-7488
Type
Journal article
Rights
© 2016, Publisher / the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at pubs.rsc.org / https://dx.doi.org/10.1039/C5TA09349J
 
© 2016, Publisher / the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at pubs.rsc.org / https://dx.doi.org/10.1039/C5TA09349J
Description
The research leading to these results has received funding from the European Community Seventh Framework Program (FP7/2007-2013) [grant agreement number 608490] (project M4CO2) and from the ANR ‘CHESDENS’ (ANR-13-SEED-0001-01).
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/9984

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