PVDF/ionic liquid polymer blends with superior separation performance for removing CO2 from hydrogen and flue gas

Chen, Hang Zheng; Li, Yuan; Chung, Tai‐Shung

doi:10.1016/j.ijhydene.2012.05.111

Cited by 138 publications

(116 citation statements)

References 48 publications

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“…Besides its application in biomaterials and membrane fouling control, PVDF polymorphism with piezoelectric and ferroelectric properties might be used in membrane cleaning, controlling temperature/concentration polarization, cake/gel layers for liquid separation and MD, for gas separation [169], and in energy applications (high density capacitors) [170]. Although PVDF is always used as a gas barrier material, it can be used as a polymer matrix to prepare mixed matrix membranes (MMMs) with high weight content of inorganic fillers, because it exhibits flexible chain movements and excellent membrane forming ability.…”

Section: Perspectives On Research On Pvdf Polymorphs In Membrane Sepamentioning

confidence: 99%

Crystalline polymorphism in poly(vinylidenefluoride) membranes

Cui

Hassankiadeh

Zhuang

et al. 2015

Progress in Polymer Science

355

250

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Section: Perspectives On Research On Pvdf Polymorphs In Membrane Sepamentioning

confidence: 99%

Crystalline polymorphism in poly(vinylidenefluoride) membranes

Cui

Hassankiadeh

Zhuang

et al. 2015

Progress in Polymer Science

355

250

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“…This growth has led to an increase in sea level and exacerbated natural disasters, e.g. [5][6][7][8][9] However, the high viscosity and high cost of ILs limit their use in future industrial applications. There are many ways to reduce CO 2 emission, including improving energy conversion efficiency, replacing fossil energy with renewable energy, and CO 2 capture and sequestration (CCS).…”

Section: Introductionmentioning

confidence: 99%

“…drought, oods and hurricanes. 5,6,8,[10][11][12][13][14] Initially, supported ionic liquid membranes (SILMs) were mostly investigated due to their high permselectivities and permeabilities. Since fossil fuels are predicted to be the major energy source for the next several decades, the most promising way to decrease CO 2 concentration is CCS.…”

Section: Introductionmentioning

confidence: 99%

Ether-functionalized ionic liquid based composite membranes for carbon dioxide separation

et al. 2016

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The efficient separation of CO 2 from other light gases has received growing attentions due to its importance in reducing greenhouse gas emissions and applications in gas purification. In this work, we developed a series of composite membranes composed of ether-functionalized pyridinium-based ionic liquids ([E n Py][NTf 2 ]) and cellulose acetate (CA) polymer matrices to improve CO 2 separation performance. CA + [E n Py][NTf 2 ] and CA + [C n Py][NTf 2 ] composite membranes were fabricated by a casting method. The CO 2 , N 2 and CH 4 permeabilities of the CA + IL composite membranes were measured, and the CO 2 /N 2 and CO 2 /CH 4 permselectivities were further calculated. The results showed that the CA + 40 wt% [E 1 Py] [NTf 2 ] composite membrane exhibits approximately a seven-fold increase in CO 2 permeability with CO 2 / N 2 and CO 2 /CH 4 permselectivities of 32 and 24, respectively. The characterization results showed that the mechanical properties and thermal stabilities of the CA + [E 1 Py][NTf 2 ] composite membranes are affected by both plasticizing effect and affinity of the ILs for the gases, which also lead to the changes in the CO 2 /N 2 and CO 2 /CH 4 permselectivities. Compared with membranes containing the nonfunctionalized analogues [C n Py][NTf 2 ], the addition of [E n Py][NTf 2 ] improves the ideal permselectivities of CA + IL composite membranes, whereas it decreases slightly the gas permeabilities. Scheme 1 The chemical structures of (a) [E n Py][NTf 2 ], (b) [C n Py][NTf 2 ] and (c) cellulose acetate. This journal is

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“…To address this problem, one approach was to blend polymers with RTILs. For example, Chen et al prepared poly(vinylidene fluoride)-RTIL blend membranes, and effects of RTIL content on the membrane performance were investigated [264]. When the mass ratio of PVDF to RTIL was 1 : 2, the optimum CO 2 permeability of 1595 barrer with the CO 2 /H 2 selectivity of 11.7 could be obtained at 4 bar and 308 K. Another approach was the synthesis of poly(ionic liquid)s (PILs) which are the solid phase at room temperature.…”

Section: Ionic Liquid-based Membranesmentioning

confidence: 99%