On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells
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Nikolić, VladimirKrkljes, Aleksandra
Kacarevic Popović, Zorica
Lausević, Zoran V.
Miljanić, Šćepan
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There is growing interest in the use of fuel cells (FC) with hydrogen as the main fuel for stationary, mobile, and transportation applications. In the FC concept membranes play increasingly important roles. Polymer electrolyte membrane fuel cells (PEMFCs) are considered as the most promising fuel cell technology for a wide range of applications due to the stable operation, the high energy generation yield and the simplicity of the system. In this work, we develop different types of membranes based on poly(vinyl alcohol) (PVA). PVA is a water-soluble polymer that is used in practical applications because of its easy preparation, excellent chemical resistance, thermal and mechanical properties. Crosslinking of the PVA was performed by gamma irradiation since radiation chemistry is found to be a very effective method for constructing three-dimensional polymeric networks. The samples prepared in this way were then immersed in the alkaline solution over a certain period of time to turn them... into conductive membranes. Ionic conductivity of the PVA hydrogels, was then measured as a function of concentration of KOH solutions and temperature. Cyclic voltammetry of these PVA hydrogel electrolytes was performed to determine the width of the electrochemical stability window. We examined these membranes impregnated with saturated 6 M KOH electrolyte as polymer membrane for fuel cells application. Our experiments showed that PEMFCs with PVA and Nafion(R) membranes had similar polarization curves, under same conditions. Furthermore, PVA membranes proved to be stable during the real cell tests. This study offers a possibility for more earnest approach to the use of PVA membranes for fuel cell applications.
Keywords:
PVA membrane / gamma irradiation / fuel cellSource:
Electrochemistry Communications, 2007, 9, 11, 2661-2665Publisher:
- Elsevier
DOI: 10.1016/j.elecom.2007.08.022
ISSN: 1388-2481
WoS: 000251784700005
Scopus: 2-s2.0-35448944022
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Institut za opštu i fizičku hemijuTY - JOUR AU - Nikolić, Vladimir AU - Krkljes, Aleksandra AU - Kacarevic Popović, Zorica AU - Lausević, Zoran V. AU - Miljanić, Šćepan PY - 2007 UR - https://riofh.iofh.bg.ac.rs/handle/123456789/128 AB - There is growing interest in the use of fuel cells (FC) with hydrogen as the main fuel for stationary, mobile, and transportation applications. In the FC concept membranes play increasingly important roles. Polymer electrolyte membrane fuel cells (PEMFCs) are considered as the most promising fuel cell technology for a wide range of applications due to the stable operation, the high energy generation yield and the simplicity of the system. In this work, we develop different types of membranes based on poly(vinyl alcohol) (PVA). PVA is a water-soluble polymer that is used in practical applications because of its easy preparation, excellent chemical resistance, thermal and mechanical properties. Crosslinking of the PVA was performed by gamma irradiation since radiation chemistry is found to be a very effective method for constructing three-dimensional polymeric networks. The samples prepared in this way were then immersed in the alkaline solution over a certain period of time to turn them into conductive membranes. Ionic conductivity of the PVA hydrogels, was then measured as a function of concentration of KOH solutions and temperature. Cyclic voltammetry of these PVA hydrogel electrolytes was performed to determine the width of the electrochemical stability window. We examined these membranes impregnated with saturated 6 M KOH electrolyte as polymer membrane for fuel cells application. Our experiments showed that PEMFCs with PVA and Nafion(R) membranes had similar polarization curves, under same conditions. Furthermore, PVA membranes proved to be stable during the real cell tests. This study offers a possibility for more earnest approach to the use of PVA membranes for fuel cell applications. PB - Elsevier T2 - Electrochemistry Communications T1 - On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells EP - 2665 IS - 11 SP - 2661 VL - 9 DO - 10.1016/j.elecom.2007.08.022 UR - conv_270 ER -
@article{ author = "Nikolić, Vladimir and Krkljes, Aleksandra and Kacarevic Popović, Zorica and Lausević, Zoran V. and Miljanić, Šćepan", year = "2007", abstract = "There is growing interest in the use of fuel cells (FC) with hydrogen as the main fuel for stationary, mobile, and transportation applications. In the FC concept membranes play increasingly important roles. Polymer electrolyte membrane fuel cells (PEMFCs) are considered as the most promising fuel cell technology for a wide range of applications due to the stable operation, the high energy generation yield and the simplicity of the system. In this work, we develop different types of membranes based on poly(vinyl alcohol) (PVA). PVA is a water-soluble polymer that is used in practical applications because of its easy preparation, excellent chemical resistance, thermal and mechanical properties. Crosslinking of the PVA was performed by gamma irradiation since radiation chemistry is found to be a very effective method for constructing three-dimensional polymeric networks. The samples prepared in this way were then immersed in the alkaline solution over a certain period of time to turn them into conductive membranes. Ionic conductivity of the PVA hydrogels, was then measured as a function of concentration of KOH solutions and temperature. Cyclic voltammetry of these PVA hydrogel electrolytes was performed to determine the width of the electrochemical stability window. We examined these membranes impregnated with saturated 6 M KOH electrolyte as polymer membrane for fuel cells application. Our experiments showed that PEMFCs with PVA and Nafion(R) membranes had similar polarization curves, under same conditions. Furthermore, PVA membranes proved to be stable during the real cell tests. This study offers a possibility for more earnest approach to the use of PVA membranes for fuel cell applications.", publisher = "Elsevier", journal = "Electrochemistry Communications", title = "On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells", pages = "2665-2661", number = "11", volume = "9", doi = "10.1016/j.elecom.2007.08.022", url = "conv_270" }
Nikolić, V., Krkljes, A., Kacarevic Popović, Z., Lausević, Z. V.,& Miljanić, Š.. (2007). On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells. in Electrochemistry Communications Elsevier., 9(11), 2661-2665. https://doi.org/10.1016/j.elecom.2007.08.022 conv_270
Nikolić V, Krkljes A, Kacarevic Popović Z, Lausević ZV, Miljanić Š. On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells. in Electrochemistry Communications. 2007;9(11):2661-2665. doi:10.1016/j.elecom.2007.08.022 conv_270 .
Nikolić, Vladimir, Krkljes, Aleksandra, Kacarevic Popović, Zorica, Lausević, Zoran V., Miljanić, Šćepan, "On the use of gamma irradiation crosslinked PVA membranes in hydrogen fuel cells" in Electrochemistry Communications, 9, no. 11 (2007):2661-2665, https://doi.org/10.1016/j.elecom.2007.08.022 ., conv_270 .