Asymmetric membranes with interpenetrating proton-conducting morphology made by a combination of immersion precipitation and photopolymerization
Само за регистроване кориснике
2012
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A new method for the preparation of asymmetric membranes with an interpenetrating proton-conducting morphology, which consists of cross-linked sulfonic acid functionalized ionomers embedded within a matrix of a thermally-resistant, glassy polymer is presented. This method combines a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. The resulting membranes have an integral top skin layer with fine proton-conducting channels on top of a coarser proton-conducting support. In-plane conductivities of some of these membranes measured at ambient temperature were significantly higher than the conductivity of Nafion membranes, while having improved methanol barrier properties. An increase in functionality and molecular weight of crosslinking agents, as well as a selection of materials to promote delayed, rather than instantaneous liquid–liquid demixing were associated with significa...nt improvements in membrane conductivity. Based on the results, a potential use of such membranes in direct methanol fuel cells looks promising.
Кључне речи:
Membrane formation / delayed demixing / proton-conductive membraneИзвор:
Journal of Membrane Science, 2012, 254-261Издавач:
- Elsevier
Финансирање / пројекти:
- MULTIPLAT - Biomimetic Ultrathin Structures as a Multipurpose Platform for Nanotechnology-Based Products (EU-FP7-228943)
DOI: 10.1016/j.memsci.2012.02.012
ISSN: 0376-7388
WoS: 000301932400029
Scopus: 2-s2.0-84858439979
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Radovanović, Filip AU - Kellner, Michael AU - Matović, Jovan AU - Liska, Robert AU - Koch, T. PY - 2012 UR - https://dais.sanu.ac.rs/123456789/770 AB - A new method for the preparation of asymmetric membranes with an interpenetrating proton-conducting morphology, which consists of cross-linked sulfonic acid functionalized ionomers embedded within a matrix of a thermally-resistant, glassy polymer is presented. This method combines a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. The resulting membranes have an integral top skin layer with fine proton-conducting channels on top of a coarser proton-conducting support. In-plane conductivities of some of these membranes measured at ambient temperature were significantly higher than the conductivity of Nafion membranes, while having improved methanol barrier properties. An increase in functionality and molecular weight of crosslinking agents, as well as a selection of materials to promote delayed, rather than instantaneous liquid–liquid demixing were associated with significant improvements in membrane conductivity. Based on the results, a potential use of such membranes in direct methanol fuel cells looks promising. PB - Elsevier T2 - Journal of Membrane Science T1 - Asymmetric membranes with interpenetrating proton-conducting morphology made by a combination of immersion precipitation and photopolymerization SP - 254 EP - 261 DO - 10.1016/j.memsci.2012.02.012 UR - https://hdl.handle.net/21.15107/rcub_dais_770 ER -
@article{ author = "Radovanović, Filip and Kellner, Michael and Matović, Jovan and Liska, Robert and Koch, T.", year = "2012", abstract = "A new method for the preparation of asymmetric membranes with an interpenetrating proton-conducting morphology, which consists of cross-linked sulfonic acid functionalized ionomers embedded within a matrix of a thermally-resistant, glassy polymer is presented. This method combines a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. The resulting membranes have an integral top skin layer with fine proton-conducting channels on top of a coarser proton-conducting support. In-plane conductivities of some of these membranes measured at ambient temperature were significantly higher than the conductivity of Nafion membranes, while having improved methanol barrier properties. An increase in functionality and molecular weight of crosslinking agents, as well as a selection of materials to promote delayed, rather than instantaneous liquid–liquid demixing were associated with significant improvements in membrane conductivity. Based on the results, a potential use of such membranes in direct methanol fuel cells looks promising.", publisher = "Elsevier", journal = "Journal of Membrane Science", title = "Asymmetric membranes with interpenetrating proton-conducting morphology made by a combination of immersion precipitation and photopolymerization", pages = "254-261", doi = "10.1016/j.memsci.2012.02.012", url = "https://hdl.handle.net/21.15107/rcub_dais_770" }
Radovanović, F., Kellner, M., Matović, J., Liska, R.,& Koch, T.. (2012). Asymmetric membranes with interpenetrating proton-conducting morphology made by a combination of immersion precipitation and photopolymerization. in Journal of Membrane Science Elsevier., 254-261. https://doi.org/10.1016/j.memsci.2012.02.012 https://hdl.handle.net/21.15107/rcub_dais_770
Radovanović F, Kellner M, Matović J, Liska R, Koch T. Asymmetric membranes with interpenetrating proton-conducting morphology made by a combination of immersion precipitation and photopolymerization. in Journal of Membrane Science. 2012;:254-261. doi:10.1016/j.memsci.2012.02.012 https://hdl.handle.net/21.15107/rcub_dais_770 .
Radovanović, Filip, Kellner, Michael, Matović, Jovan, Liska, Robert, Koch, T., "Asymmetric membranes with interpenetrating proton-conducting morphology made by a combination of immersion precipitation and photopolymerization" in Journal of Membrane Science (2012):254-261, https://doi.org/10.1016/j.memsci.2012.02.012 ., https://hdl.handle.net/21.15107/rcub_dais_770 .