A Review on Ionic Liquid Gas Separation Membranes
Ionic liquids have attracted the attention of the industry and research community as versatile solvents with unique properties, such as ionic conductivity, low volatility, high solubility of gases and vapors, thermal stability, and the possibility to combine anions and cations to yield an almost end...
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doaj-c0fe97dc7ab740b0a5fd5000b9c398b32021-01-31T00:00:52ZengMDPI AGMembranes2077-03752021-01-0111979710.3390/membranes11020097A Review on Ionic Liquid Gas Separation MembranesKarel Friess0Pavel Izák1Magda Kárászová2Mariia Pasichnyk3Marek Lanč4Daria Nikolaeva5Patricia Luis6Johannes Carolus Jansen7Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech RepublicDepartment of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech RepublicCzech Academy of Sciences, Institute of Chemical Process Fundamentals, Rozvojová 135, 165 02 Prague, Czech RepublicCzech Academy of Sciences, Institute of Chemical Process Fundamentals, Rozvojová 135, 165 02 Prague, Czech RepublicDepartment of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech RepublicMaterials & Process Engineering, UCLouvain, Place Sainte Barbe 2, 1348 Louvain-la-Neuve, BelgiumMaterials & Process Engineering, UCLouvain, Place Sainte Barbe 2, 1348 Louvain-la-Neuve, BelgiumInstitute on Membrane Technology (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende (CS), ItalyIonic liquids have attracted the attention of the industry and research community as versatile solvents with unique properties, such as ionic conductivity, low volatility, high solubility of gases and vapors, thermal stability, and the possibility to combine anions and cations to yield an almost endless list of different structures. These features open perspectives for numerous applications, such as the reaction medium for chemical synthesis, electrolytes for batteries, solvent for gas sorption processes, and also membranes for gas separation. In the search for better-performing membrane materials and membranes for gas and vapor separation, ionic liquids have been investigated extensively in the last decade and a half. This review gives a complete overview of the main developments in the field of ionic liquid membranes since their first introduction. It covers all different materials, membrane types, their preparation, pure and mixed gas transport properties, and examples of potential gas separation applications. Special systems will also be discussed, including facilitated transport membranes and mixed matrix membranes. The main strengths and weaknesses of the different membrane types will be discussed, subdividing them into supported ionic liquid membranes (SILMs), poly(ionic liquids) or polymerized ionic liquids (PILs), polymer/ionic liquid blends (physically or chemically cross-linked ‘ion-gels’), and PIL/IL blends. Since membrane processes are advancing as an energy-efficient alternative to traditional separation processes, having shown promising results for complex new separation challenges like carbon capture as well, they may be the key to developing a more sustainable future society. In this light, this review presents the state-of-the-art of ionic liquid membranes, to analyze their potential in the gas separation processes of the future.https://www.mdpi.com/2077-0375/11/2/97gas separationionic liquidpolymerized ionic liquidsionic liquid blendsion gel membranetransport properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Karel Friess Pavel Izák Magda Kárászová Mariia Pasichnyk Marek Lanč Daria Nikolaeva Patricia Luis Johannes Carolus Jansen |
spellingShingle |
Karel Friess Pavel Izák Magda Kárászová Mariia Pasichnyk Marek Lanč Daria Nikolaeva Patricia Luis Johannes Carolus Jansen A Review on Ionic Liquid Gas Separation Membranes Membranes gas separation ionic liquid polymerized ionic liquids ionic liquid blends ion gel membrane transport properties |
author_facet |
Karel Friess Pavel Izák Magda Kárászová Mariia Pasichnyk Marek Lanč Daria Nikolaeva Patricia Luis Johannes Carolus Jansen |
author_sort |
Karel Friess |
title |
A Review on Ionic Liquid Gas Separation Membranes |
title_short |
A Review on Ionic Liquid Gas Separation Membranes |
title_full |
A Review on Ionic Liquid Gas Separation Membranes |
title_fullStr |
A Review on Ionic Liquid Gas Separation Membranes |
title_full_unstemmed |
A Review on Ionic Liquid Gas Separation Membranes |
title_sort |
review on ionic liquid gas separation membranes |
publisher |
MDPI AG |
series |
Membranes |
issn |
2077-0375 |
publishDate |
2021-01-01 |
description |
Ionic liquids have attracted the attention of the industry and research community as versatile solvents with unique properties, such as ionic conductivity, low volatility, high solubility of gases and vapors, thermal stability, and the possibility to combine anions and cations to yield an almost endless list of different structures. These features open perspectives for numerous applications, such as the reaction medium for chemical synthesis, electrolytes for batteries, solvent for gas sorption processes, and also membranes for gas separation. In the search for better-performing membrane materials and membranes for gas and vapor separation, ionic liquids have been investigated extensively in the last decade and a half. This review gives a complete overview of the main developments in the field of ionic liquid membranes since their first introduction. It covers all different materials, membrane types, their preparation, pure and mixed gas transport properties, and examples of potential gas separation applications. Special systems will also be discussed, including facilitated transport membranes and mixed matrix membranes. The main strengths and weaknesses of the different membrane types will be discussed, subdividing them into supported ionic liquid membranes (SILMs), poly(ionic liquids) or polymerized ionic liquids (PILs), polymer/ionic liquid blends (physically or chemically cross-linked ‘ion-gels’), and PIL/IL blends. Since membrane processes are advancing as an energy-efficient alternative to traditional separation processes, having shown promising results for complex new separation challenges like carbon capture as well, they may be the key to developing a more sustainable future society. In this light, this review presents the state-of-the-art of ionic liquid membranes, to analyze their potential in the gas separation processes of the future. |
topic |
gas separation ionic liquid polymerized ionic liquids ionic liquid blends ion gel membrane transport properties |
url |
https://www.mdpi.com/2077-0375/11/2/97 |
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