Scalable nanoconfined ionic liquid membranes with ultrapermeance and ultraselectivity for efficient CO 2 capture
University at Buffalo, State University of New York · Stevenson University
Abstract
Supported ionic liquid membranes (SILMs) stand attractive for gas separation considering the tunability, high gas selectivity, and ease of fabrication. However, the intrinsic instability of SILMs limited their practical use. Here, we designed, fabricated, and investigated an ultrapermeable, ultraselective, and stable nanoconfined ionic liquid (NCIL) membrane for highly efficient CO 2 capture. Specifically, the combination of a thin, open, and uniform nanoconfined network of single-walled carbon nanotube with highly CO 2 –selective ionic liquid carrier enabled the superior CO 2 permeance of 1654 GPU and CO 2 /N 2 selectivity of 1132, surpassing most state-of-the-art facilitated transport membranes. The scale-up…
Citation impact
- FWCI
- 16.66
- Percentile
- 99%
- References
- 77
Authors
5Topics & keywords
- Permeance
- Ionic liquid
- Membrane
- Flue gas
- Carbon nanotube
- Gas separation
- Ionic bonding