CO2 Capture by Novel Supported Ionic Liquid Phase Systems Consisting of Silica Nanoparticles Encapsulating Amine-Functionalized Ionic Liquids.

Romanos GE, Schulz P, Bahlmann M, Wasserscheid P, Sapalidis A, Katsaros FK, Athanasekou CP, Beltsios K, Kanellopoulos NK (2014)

Publication Type: Journal article, Original article

Subtype: other

Publication year: 2014

Journal

Journal of Physical Chemistry C American Chemical Society

Publisher: American Chemical Society

Book Volume: 118

Pages Range: 24437-24451

Journal Issue: 42

Abstract

The authors report novel supported ionic liq. (IL) phase systems, described as "inverse" SILPs, consisting of micron size IL droplets within an envelope of silica nanoparticles. These novel IL-in-air powders, produced by an easily scalable phase inversion process, are stable up to 60°C and 30 bar and are proposed as a means to confront the major drawbacks of conventional SILPs for gas sepn. SILPs are usually formed by filling the channels of nanoporous materials with the IL phase. In case the core space of the pores remains open, such conventional SILPs exhibit lack of gas absorption specificity, while complete pore filling leads to diffusivity that is very low compared with that for corresponding bulk ILs; the latter drop is largely due to the high tortuosity of the pore network of the support. The inverse SILPs prepd. in this work exhibited promising CO2/N2 sepn. performance that had reached the value of 20 at absorption equil. and enhanced CO2 absorption capacity of 1.5-3 mmol g-1 at 1 bar and 40°C. Moreover, the CO2 absorption kinetics were very fast compared with conventional SILP systems and to simultaneous N2 absorption; the CO2/N2 selectivity at the short times of the transient stage of absorption had reached values in excess of 200. [on SciFinder(R)]

Authors with CRIS profile

Peter Schulz Lehrstuhl für Chemische Reaktionstechnik (CRT) Matthias Bahlmann Lehrstuhl für Chemische Reaktionstechnik (CRT) Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik (CRT)

Involved external institutions

National Centre for Scientific Research (NCSR) "Demokritos" GR Greece (GR) University of Ioannina / Πανεπιστήμιο Ιωαννίνων GR Greece (GR)

How to cite

APA:

Romanos, G.E., Schulz, P., Bahlmann, M., Wasserscheid, P., Sapalidis, A., Katsaros, F.K.,... Kanellopoulos, N.K. (2014). CO2 Capture by Novel Supported Ionic Liquid Phase Systems Consisting of Silica Nanoparticles Encapsulating Amine-Functionalized Ionic Liquids. Journal of Physical Chemistry C, 118(42), 24437-24451.

MLA:

Romanos, George Em., et al. "CO2 Capture by Novel Supported Ionic Liquid Phase Systems Consisting of Silica Nanoparticles Encapsulating Amine-Functionalized Ionic Liquids." Journal of Physical Chemistry C 118.42 (2014): 24437-24451.

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