Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijhydene.2013.05.056
Title: Physical aging, high temperature and water vapor permeation studies of UV-rearranged PIM-1 membranes for advanced hydrogen purification and production
Authors: Li, F.Y. 
Chung, T.-S. 
Keywords: (PIM-1) membranes
Gas separation
Hydrogen
Polymers of intrinsic microporosity
Positron annihilation lifetime (PAL)
UV-rearranged
Issue Date: 6-Aug-2013
Citation: Li, F.Y., Chung, T.-S. (2013-08-06). Physical aging, high temperature and water vapor permeation studies of UV-rearranged PIM-1 membranes for advanced hydrogen purification and production. International Journal of Hydrogen Energy 38 (23) : 9786-9793. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijhydene.2013.05.056
Abstract: Ultraviolet (UV)-rearranged PIM-1 membranes have been shown to exhibit superior gas separation performance for H2/CO2 separation. The long-term aging studies of up to 100 days were investigated and revealed that the UV-rearranged PIM-1 membranes are much more stable than the original PIM-1 membrane. By positron annihilation lifetime (PAL) analyses, a constant decrease of o-Ps lifetime during physical aging of all membranes was observed, while o-Ps intensity changed sparingly. Compared to pure gas tests, the UV-irradiated PIM-1 membrane shows considerably enhanced separation performance in mixed gas tests with and without CO under high temperatures. Although the UV-rearranged PIM-1 membranes reveal deteriorating gas separation performance under humid feed conditions due to the effect of water vapor induced plasticization, the overall gas separation performance still outperforms most literature data. The successful validation of the separation performance for the UV-rearranged PIM-1 membranes under similar industrial testing conditions may possibly suggest the great potential of this type of membrane for the purification and production of industrial hydrogen. Copyright © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Source Title: International Journal of Hydrogen Energy
URI: http://scholarbank.nus.edu.sg/handle/10635/89789
ISSN: 03603199
DOI: 10.1016/j.ijhydene.2013.05.056
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