Recent advances in supported ionic liquid membrane technology

Lozano, L. J.; Godı́nez, C.; Ríos, Antonia Pérez de los; Hernández-Fernández, F.J.; Sánchez-Segado, Sergio; Alguacil, Francisco José

doi:10.1016/j.memsci.2011.03.036

Cited by 366 publications

(160 citation statements)

References 109 publications

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“…When the pressure increased from 2 to 3 bar, the CO2/N2 ideal selectivity increased very slightly, which means that the solubility is close to the saturation of ILs by both gases. This causes the ideal selectivity to remain quasi-constant in agreement with the report by Lozano et al, because ideal selectivity depends mainly on the nature of the ILs used as the liquid phase [35]. The relatively high ideal selectivity, i.…”

Section: Effects Of Ils Anion Species On Permeancesupporting

confidence: 88%

“…It turns out that the permeation was quasi-constant with a pressure increase. This behaviour can be explained by the transport mechanism through the ionic liquid, which is described by solution-diffusion mass transport processes when the maximum driving force is directly related to the CO 2 solubility in the ionic liquid [32][33][34][35][36][37][38][39][40] …”

Section: Ftir (Dr)mentioning

confidence: 99%

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Interactions between the Ionic Liquid and the ZrO2 Support in Supported Ionic Liquid Membranes for CO2 Separation

et al. 2016

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This work reports the interaction study of two supported ionic liquid membranes (SILMs) based on 1-butyl-3-methylimidazolium hexafluorophosphate ([C 4 mim][PF 6 ]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([C 4 mim][BF 4 ]), which were impregnated into porous zirconia supports with 20 nm average pore diameters. The interaction of ionic liquid-support observed from diffuse reflectance (DR), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS) is reported. The IR spectrum in the 600 to 4000 cm −1 range showed a specific interaction of the ionic liquid with the support. The N 2 and CO 2 permeances in the SILMs with [C 4 mim][BF 4 ] were 8.7 × 10 −8 mol·s −1 ·m −2 ·Pa −1 and 9.6 × 10 −7 mol·s −1 ·m −2 ·Pa −1 , respectively. The separation factor through the ionic liquid in the membrane as a function of temperature showed that the SILMs studied here can be used for CO 2 separation at low temperatures.

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Section: Effects Of Ils Anion Species On Permeancesupporting

confidence: 88%

Section: Ftir (Dr)mentioning

confidence: 99%

Interactions between the Ionic Liquid and the ZrO2 Support in Supported Ionic Liquid Membranes for CO2 Separation

et al. 2016

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“…The use of ILs and PILs for obtaining gas/liquid selective composite materials has already proven to be a feasible approach. The sum of their properties, i.e., thermal/chemical stability, low melting point, negligible vapor pressure and multiple bonding capacity, allows creating materials with permanent highly interactive liquid interphases, which can selectively interact with different gases/liquids depending on the IL's chemical structure [129,130] (Figure 9). This allowed preparing, e.g., IL-silica membrane, using a silylated IL, with superior separation factor of toluene/H 2 (>17,000) [131]; IL/PIL-based metal-organic frameworks (MOFs) that allow olefin/paraffin separation [132], in situ transform dienes into monoenes [133] or sense and actuate when in the presence of NH 3 [134]; or even a vast number of different supported-IL membranes, polymer/IL composite membranes, gelled IL membranes and PILs-based membranes for CO 2 separation [135].…”

Section: Il-based Nanocomposites With Barrier Propertiesmentioning

confidence: 99%

Recent Applications of Ionic Liquids in the Sol-Gel Process for Polymer–Silica Nanocomposites with Ionic Interfaces

Donato

Matějka

Mauler

et al. 2017

Colloids and Interfaces

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Abstract:Understanding the organic-inorganic interphases of hybrid materials allows structure and properties control for obtaining new advanced materials. Lately, the use of ionic liquids (ILs) and poly(ionic liquids) (PILs) allowed structure control from the first sol-gel reaction steps due to their anisotropy and multiple bonding capacity. They also act as multifunctional compatibilizing agents that affect the interfacial interactions in a molecular structure-dependent manner. Thus, this review will explore the concepts and latest efforts to control silica morphology using processes such as the sol-gel, both in situ and ex situ of polymer matrices, pre-polymers or polymer precursors. It discusses how to control the polymer-filler interphase bonding, highlighting the last achievements in the interphase ionicity control and, consequently, how these affect the final nanocomposites providing materials with barrier, shape-memory and self-healing properties.

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“…One reason beyond the increasing popularity of SILMs for biological gas (e.g. biohydrogen) conditioning is their potential feasibility under lowpressure circumstances, generally up to 2e5 bars [61]. It is beneficial since good separation properties are expressed nearly to the conditions where biohydrogen production taking place and therefore the need for energy intense compression can be mitigated.…”

Section: 2mentioning

confidence: 99%

Biohydrogen purification by membranes: An overview on the operational conditions affecting the performance of non-porous, polymeric and ionic liquid based gas separation membranes

Bakonyi

Nemestóthy

Bélafi–Bakó

2013

International Journal of Hydrogen Energy

145

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Membrane Separation Polymer Ionic liquidIntegrated system a b s t r a c t Many types of membranes are available to enrich hydrogen. Nevertheless, there are some with special potential for biohydrogen purification such as the non-porous, polymeric and ionic liquid based membranes. The attractiveness of these membranes comes from the fact that they can be employed nearly under the conditions where biohydrogen formation taking place. Therefore, they appear as promising candidates to be coupled with hydrogen producing bioreactors and hence giving the chance for in situ biohydrogen concentration.It is known that the feasibility and efficiency of membrane technology e beside material selection and module design e significantly depend on the separation circumstances.Thus, the operation of membranes is a key issue and the most important factors to be considered for gas purification are the composition of gas to be separated, the pressure and temperature applied. The scope of this study is to give a comprehensive overview on the recent applications of non-porous, polymeric and ionic liquid supported membranes for biohydrogen recovery, placing emphasis on the operational conditions affecting membrane's behavior and performance. Furthermore, a novel concept for integrated biohydrogen production and purification using gas separation membranes is demonstrated and discussed.

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Recent advances in supported ionic liquid membrane technology

Cited by 366 publications

References 109 publications

Interactions between the Ionic Liquid and the ZrO2 Support in Supported Ionic Liquid Membranes for CO2 Separation

Interactions between the Ionic Liquid and the ZrO2 Support in Supported Ionic Liquid Membranes for CO2 Separation

Recent Applications of Ionic Liquids in the Sol-Gel Process for Polymer–Silica Nanocomposites with Ionic Interfaces

Biohydrogen purification by membranes: An overview on the operational conditions affecting the performance of non-porous, polymeric and ionic liquid based gas separation membranes

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