Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis
We present a novel membrane electrode assembly (MEA) fabrication method for proton exchange membrane water electrolysis (PEMWE). Inspired by previous work on PEM fuel cells (PEMFCs), we fabricated PEMWE-MEAs via direct membrane deposition (DMD). DMD-MEAs were fabricated by spray coating the membrane...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-01-01
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| Series: | Electrochemistry Communications |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248119303030 |
| _version_ | 1818525539810410496 |
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| author | Peter Holzapfel Melanie Bühler Chuyen Van Pham Friedemann Hegge Thomas Böhm David McLaughlin Matthias Breitwieser Simon Thiele |
| author_facet | Peter Holzapfel Melanie Bühler Chuyen Van Pham Friedemann Hegge Thomas Böhm David McLaughlin Matthias Breitwieser Simon Thiele |
| author_sort | Peter Holzapfel |
| collection | DOAJ |
| description | We present a novel membrane electrode assembly (MEA) fabrication method for proton exchange membrane water electrolysis (PEMWE). Inspired by previous work on PEM fuel cells (PEMFCs), we fabricated PEMWE-MEAs via direct membrane deposition (DMD). DMD-MEAs were fabricated by spray coating the membrane directly onto the cathode electrode – in this case, a carbon cloth substrate with microporous layer coated with Pt/C. The complete DMD-MEAs consisted of the membrane-cathode compound assembled with an anode electrode, which is a porous titanium fiber substrate coated with IrO2. Polarization experiments of DMD-MEAs show promising results: In comparison to a reference catalyst coated membrane (CCM) and a porous transport electrode (PTE) type MEA using a freestanding Nafion 117 membrane, we found very good electrochemical performances for DMD-MEAs. DMD-MEAs show slightly higher activation losses than the reference CCM. However, DMD-MEAs seem to exhibit reduced ohmic and mass transport losses compared to those manufactured using the CCM approach. Compared to the PTE-type reference DMD shows improvements for all three loss mechanisms. Similar as for PEMFCs, DMD may allow for a simplified fabrication route and higher degree of design freedom in PEMWE-MEA manufacturing due to the simple layer by layer fabrication approach. Keywords: PEM water electrolysis, Direct membrane deposition, Porous transport electrodes |
| first_indexed | 2024-12-11T06:10:25Z |
| format | Article |
| id | doaj.art-312a26bdb2184d80aa9234a8a7f41b9b |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-12-11T06:10:25Z |
| publishDate | 2020-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-312a26bdb2184d80aa9234a8a7f41b9b2022-12-22T01:18:08ZengElsevierElectrochemistry Communications1388-24812020-01-01110Directly coated membrane electrode assemblies for proton exchange membrane water electrolysisPeter Holzapfel0Melanie Bühler1Chuyen Van Pham2Friedemann Hegge3Thomas Böhm4David McLaughlin5Matthias Breitwieser6Simon Thiele7Forschungszentrum Jülich GmbH, Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstr. 3, 91058 Erlangen, GermanyHahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; Electrochemical Energy Systems, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, GermanyElectrochemical Energy Systems, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, GermanyElectrochemical Energy Systems, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, GermanyForschungszentrum Jülich GmbH, Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstr. 3, 91058 Erlangen, Germany; Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, GermanyForschungszentrum Jülich GmbH, Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstr. 3, 91058 Erlangen, Germany; Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, GermanyHahn-Schickard, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; Electrochemical Energy Systems, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, GermanyForschungszentrum Jülich GmbH, Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstr. 3, 91058 Erlangen, Germany; Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany; Corresponding author.We present a novel membrane electrode assembly (MEA) fabrication method for proton exchange membrane water electrolysis (PEMWE). Inspired by previous work on PEM fuel cells (PEMFCs), we fabricated PEMWE-MEAs via direct membrane deposition (DMD). DMD-MEAs were fabricated by spray coating the membrane directly onto the cathode electrode – in this case, a carbon cloth substrate with microporous layer coated with Pt/C. The complete DMD-MEAs consisted of the membrane-cathode compound assembled with an anode electrode, which is a porous titanium fiber substrate coated with IrO2. Polarization experiments of DMD-MEAs show promising results: In comparison to a reference catalyst coated membrane (CCM) and a porous transport electrode (PTE) type MEA using a freestanding Nafion 117 membrane, we found very good electrochemical performances for DMD-MEAs. DMD-MEAs show slightly higher activation losses than the reference CCM. However, DMD-MEAs seem to exhibit reduced ohmic and mass transport losses compared to those manufactured using the CCM approach. Compared to the PTE-type reference DMD shows improvements for all three loss mechanisms. Similar as for PEMFCs, DMD may allow for a simplified fabrication route and higher degree of design freedom in PEMWE-MEA manufacturing due to the simple layer by layer fabrication approach. Keywords: PEM water electrolysis, Direct membrane deposition, Porous transport electrodeshttp://www.sciencedirect.com/science/article/pii/S1388248119303030 |
| spellingShingle | Peter Holzapfel Melanie Bühler Chuyen Van Pham Friedemann Hegge Thomas Böhm David McLaughlin Matthias Breitwieser Simon Thiele Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis Electrochemistry Communications |
| title | Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis |
| title_full | Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis |
| title_fullStr | Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis |
| title_full_unstemmed | Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis |
| title_short | Directly coated membrane electrode assemblies for proton exchange membrane water electrolysis |
| title_sort | directly coated membrane electrode assemblies for proton exchange membrane water electrolysis |
| url | http://www.sciencedirect.com/science/article/pii/S1388248119303030 |
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