High CO₂ Permeation Flux Enabled by Highly Interconnected Three-Dimensional Ionic Channels in Selective CO₂ Separation Membranes

Author(s)

Lingling Zhang, University of South Carolina - ColumbiaFollow
Nansheng Xu, University of South Carolina - ColumbiaFollow
Xue Li, University of South Carolina - ColumbiaFollow
Siwei Wang
Kevin Huang, University of South Carolina - ColumbiaFollow
William H. Harris
Wilson K. S. Chiu

Document Type

Article

Abstract

Abatement of CO₂ emissions from existing fossil-fueled power plants is currently the sole near-term solution to stabilize CO₂ concentration in the atmosphere. Separation and capture of CO₂from process streams of these power plants is the first step toward this effort. In this paper, we report a high flux membrane consisting of highly and efficiently interconnected three-dimensional ionic channels prepared from a combined “co-precipitation” and “sacrificial-template” synthesis. The membranes exhibit remarkable CO₂ permeation characteristic, achieving a CO₂ flux density two orders of magnitude higher than other similar systems reported in the literature. The experimental results also have an excellent agreement with the theoretical predictions. Overall, the demonstrated dual-phase membranes show a great promise for selective pre-combustionCO₂ separation.

Publication Info

Published in Energy & Environmental science, Volume 5, Issue 8, 2012, pages 8310-8317.

Rights

©Energy & Environmental Science 2012, Royal Society of Chemistry.

This article cannot be redistributed or further made available.

This article was first published by the Royal Society of Chemistry and can be found at http://dx.doi.org/10.1039/C2EE22045H

Zhang, L., Xu, N.., Li, X., Wang, S., Huang, K., Harris, W. H., & Chiu, W. K. S. (2012). High CO₂ Permeation Flux Enabled by Highly Interconnected Three-Dimensional Ionic Channels in Selective CO₂ Separation Membranes. Energy & Environmental Science, 5 (8), 8310 - 8317. http://dx.doi.org/10.1039/C2EE22045H