| Title: | Study on commercially available membranes for alkaline direct ethanol fuel cells |
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| Authors: | ID Roschger, Michaela (Author)
ID Wolf, Sigrid (Author)
ID Billiani, Andreas (Author)
ID Mayer, Kurt (Author)
ID Hren, Maša (Author)
ID Gorgieva, Selestina (Author)
ID Genorio, Boštjan (Author)
ID Hacker, Viktor (Author) |
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| Files: |  roschger-et-al-2023-study-on-commercially-available-membranes-for-alkaline-direct-ethanol-fuel-cells.pdf (5,64 MB)
MD5: A2D241638DCF8E0542DF1F5AA2CCDFD7
 https://pubs.acs.org/doi/10.1021/acsomega.3c01564
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | This study provides a comparison of different commercially available low-cost anion exchange membranes (AEMs), a microporous separator, a cation exchange membrane (CEM), and an anionic-treated CEM for their application in the liquid-feed alkaline direct ethanol fuel cell (ADEFC). Moreover, the effect on performance was evaluated taking two different modes of operation for the ADEFC, with AEM or CEM, into consideration. The membranes were compared with respect to their physical and chemical properties, such as thermal and chemical stability, ion-exchange capacity, ionic conductivity, and ethanol permeability. The influence of these factors on performance and resistance was determined by means of polarization curve and electrochemical impedance spectra (EIS) measurements in the ADEFC. In addition, the influence of two different commercial ionomers on the structure and transport properties of the catalyst layer and on the performance were analyzed with scanning electron microscopy, single cell tests, and EIS. The applicability barriers of the membranes were pointed out, and the ideal combinations of membrane and ionomer for the liquid-feed ADEFC achieved power densities of approximately 80 mW cm–2 at 80 °C. |
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| Keywords: | bioethanol, electrodes, fluoropolymers, ionomers, membranes |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 08.03.2023 |
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| Article acceptance date: | 24.05.2023 |
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| Publication date: | 02.06.2023 |
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| Publisher: | ACS Publications (American Chemical Society) |
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| Year of publishing: | 2023 |
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| Number of pages: | [13] str. A-M |
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| PID: | 20.500.12556/DKUM-87723  |
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| UDC: | 543:66 |
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| ISSN on article: | 2470-1343 |
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| COBISS.SI-ID: | 155012867 |
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| DOI: | 10.1021/acsomega.3c01564 |
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| Publication date in DKUM: | 26.03.2024 |
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| Views: | 392 |
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| Downloads: | 72 |
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| Metadata: |    |
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| Categories: | Misc.
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