Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이영무 | - |
dc.date.accessioned | 2018-03-20T05:48:18Z | - |
dc.date.available | 2018-03-20T05:48:18Z | - |
dc.date.issued | 2014-03 | - |
dc.identifier.citation | International journal of hydrogen energy, Vol.39 No.9 [2014], pp. 4459-4467 | en_US |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S036031991400055X?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/49567 | - |
dc.description.abstract | End-group crosslinked sulfonated poly(arylene sulfide nitrile) (XESPSN) membranes are prepared to investigate the effect of crosslinking on the properties of sulfonated aromatic polymer membranes at elevated temperatures (>100 degrees C). The morphological transformation during annealing and crosslinking is confirmed by atomic force microscopy. The XESPSN membranes show outstanding thermal and mechanical properties compared to pristine and non-crosslinked ESPSN and Nafion (R) up to 200 degrees C. In addition, the XESPSN membranes exhibit higher proton conductivities (0.011-0.023 S cm(-1)) than the as-prepared pristine ESPSN (0.004 S cm(-1)), particularly at elevated temperature (120 degrees C) and low relative humidity (35%) conditions due to its well-ordered hydrophilic morphology after cross-linking. Therefore, the XESPSN membranes demonstrate significantly improved maximum power densities (415-485 mW cm(-2)) compared to the ESPSN (281 mW cm(-2)) and Nafion (R) (314 mW cm (2)) membranes in single cell performance tests conducted at 120 degrees C and 35% relative humidity. Furthermore, the XESPSN membrane exhibits a much longer duration than the ESPSN membrane during fuel cell operation under a constant current load as a result of its improved mechanical and thermal stabilities. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. | en_US |
dc.description.sponsorship | This work was supported by the Joint Research Project funded by the Korea Research Council of Fundamental Science & Technology (KRCF), Republic of Korea and Nano$Material Technology Development through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012M3A7B4049745). | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Science B.V., Amsterdam. | en_US |
dc.subject | Fuel cell | en_US |
dc.subject | Proton exchange membrane | en_US |
dc.subject | Highly sulfonated polymer | en_US |
dc.subject | Crosslinking | en_US |
dc.subject | Polysulfide | en_US |
dc.title | Effect of crosslinking on the durability and electrochemical performance of sulfonated aromatic polymer membranes at elevated temperatures | en_US |
dc.type | Article | en_US |
dc.relation.no | 9 | - |
dc.relation.volume | 39 | - |
dc.identifier.doi | 10.1016/j.ijhydene.2014.01.006 | - |
dc.relation.page | 4459-4467 | - |
dc.relation.journal | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.contributor.googleauthor | Shin, D. W. | - |
dc.contributor.googleauthor | Lee, S. Y. | - |
dc.contributor.googleauthor | Kang, N. R. | - |
dc.contributor.googleauthor | Lee, K. H. | - |
dc.contributor.googleauthor | Cho, D. H. | - |
dc.contributor.googleauthor | Lee, M. J. | - |
dc.contributor.googleauthor | Lee, Y. M. | - |
dc.contributor.googleauthor | Suh, K. D. | - |
dc.contributor.googleauthor | 이영무 | - |
dc.relation.code | 2014031541 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | ymlee | - |
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