TY - JOUR
T1 - Gas/vapour separation using ultra-microporous metal–organic frameworks: insights into the structure/separation relationship
AU - Adil, Karim
AU - Belmabkhout, Youssef
AU - Pillai, Renjith S.
AU - Cadiau, Amandine
AU - Bhatt, Prashant
AU - Assen, Ayalew Hussen Assen
AU - Maurin, Guillaume
AU - Eddaoudi, Mohamed
N1 - KAUST Repository Item: Exported on 2018-05-17
Acknowledged KAUST grant number(s): FCC-/1/1972-19-01, FCC/1/1972-20-01
Acknowledgements: Part of the research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST) under FCC-/1/1972-19-01, FCC/1/1972-20-01 and Center Partnership Fund Program-2910 program. The research leading to part of these results has also received funding from the European Community Seventh Framework Program (FP7/2007–2013) under grant agreement no. 608490 (project M4CO2) and the ANR ‘CHESDENS’ (ANR-13-SEED-0001-01). G. M. thanks the Institut Universitaire de France for its support.
PY - 2017/5/30
Y1 - 2017/5/30
N2 - The separation of related molecules with similar physical/chemical properties is of prime industrial importance and practically entails a substantial energy penalty, typically necessitating the operation of energy-demanding low temperature fractional distillation techniques. Certainly research efforts, in academia and industry alike, are ongoing with the main aim to develop advanced functional porous materials to be adopted as adsorbents for the effective and energy-efficient separation of various important commodities. Of special interest is the subclass of metal-organic frameworks (MOFs) with pore aperture sizes below 5-7 Å, namely ultra-microporous MOFs, which in contrast to conventional zeolites and activated carbons show great prospects for addressing key challenges in separations pertaining to energy and environmental sustainability, specifically materials for carbon capture and separation of olefin/paraffin, acetylene/ethylene, linear/branched alkanes, xenon/krypton, etc. In this tutorial review we discuss the latest developments in ultra-microporous MOF adsorbents and their use as separating agents via thermodynamics and/or kinetics and molecular sieving. Appreciably, we provide insights into the distinct microscopic mechanisms governing the resultant separation performances, and suggest a plausible correlation between the inherent structural features/topology of MOFs and the associated gas/vapour separation performance.
AB - The separation of related molecules with similar physical/chemical properties is of prime industrial importance and practically entails a substantial energy penalty, typically necessitating the operation of energy-demanding low temperature fractional distillation techniques. Certainly research efforts, in academia and industry alike, are ongoing with the main aim to develop advanced functional porous materials to be adopted as adsorbents for the effective and energy-efficient separation of various important commodities. Of special interest is the subclass of metal-organic frameworks (MOFs) with pore aperture sizes below 5-7 Å, namely ultra-microporous MOFs, which in contrast to conventional zeolites and activated carbons show great prospects for addressing key challenges in separations pertaining to energy and environmental sustainability, specifically materials for carbon capture and separation of olefin/paraffin, acetylene/ethylene, linear/branched alkanes, xenon/krypton, etc. In this tutorial review we discuss the latest developments in ultra-microporous MOF adsorbents and their use as separating agents via thermodynamics and/or kinetics and molecular sieving. Appreciably, we provide insights into the distinct microscopic mechanisms governing the resultant separation performances, and suggest a plausible correlation between the inherent structural features/topology of MOFs and the associated gas/vapour separation performance.
UR - http://hdl.handle.net/10754/625101
UR - http://pubs.rsc.org/en/Content/ArticleLanding/2017/CS/C7CS00153C#!divAbstract
U2 - 10.1039/c7cs00153c
DO - 10.1039/c7cs00153c
M3 - Article
C2 - 28555216
SN - 0306-0012
VL - 46
SP - 3402
EP - 3402
JO - Chem. Soc. Rev.
JF - Chem. Soc. Rev.
IS - 11
ER -