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https://doi.org/10.1016/j.polymer.2011.12.011
Title: | Molecular design of nanohybrid gas separation membranes for optimal CO 2 separation | Authors: | Lau, C.H. Paul, D.R. Chung, T.S. |
Keywords: | CO 2 separation Hybrid materials Nanohybrid membranes |
Issue Date: | 24-Jan-2012 | Citation: | Lau, C.H., Paul, D.R., Chung, T.S. (2012-01-24). Molecular design of nanohybrid gas separation membranes for optimal CO 2 separation. Polymer 53 (2) : 454-465. ScholarBank@NUS Repository. https://doi.org/10.1016/j.polymer.2011.12.011 | Abstract: | Organic-inorganic materials comprising CO 2-philic components may yield superior CO 2 transport properties and good CO 2/H 2 gas selectivity. We report that a fine balance in size heterogeneity in the silicon-based structures is essential and a mixture of sizes up to 50 nm surrounded by 5-15 nm silicon-based nanostructures is the preferred inorganic phase morphology that yields optimal nanohybrid membranes. The combination of optimal synthesis conditions i.e. water/silicon ratio, condensation and ozone pre-treatment durations yields a nanohybrid membrane with a CO 2 permeability of 2000 Barrer while achieving a CO 2/H 2 selectivity of 11. The findings of this work are important for the design of gas separation membranes using green materials. © 2011 Elsevier Ltd. All rights reserved. | Source Title: | Polymer | URI: | http://scholarbank.nus.edu.sg/handle/10635/89469 | ISSN: | 00323861 | DOI: | 10.1016/j.polymer.2011.12.011 |
Appears in Collections: | Staff Publications |
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