Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC
Percolation testing and contact angle measurements have been used to investigate the role of relative humidity on structure, mass transport, and wettability of a PEM fuel cell catalyst layer and membrane. Four samples were tested, two catalyst layers and two membranes. Structure and mass transport c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/01/e3sconf_efc2022_04019.pdf |
| _version_ | 1819279103980732416 |
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| author | Alofari Karrar Me´dici Ezequiel Tajiri Kazuya Allen Jeffrey |
| author_facet | Alofari Karrar Me´dici Ezequiel Tajiri Kazuya Allen Jeffrey |
| author_sort | Alofari Karrar |
| collection | DOAJ |
| description | Percolation testing and contact angle measurements have been used to investigate the role of relative humidity on structure, mass transport, and wettability of a PEM fuel cell catalyst layer and membrane. Four samples were tested, two catalyst layers and two membranes. Structure and mass transport changes in the catalyst layers resulting from RH changes were studied in terms of percolation pressure. A clear change in the structure between low and high RH conditioning was observed. Relative humidity (RH) cycling also impacted percolation pressures with an indication of catalyst layer cracking. In addition, RH effect on wettability of both catalyst layers and membranes was studied by measuring contact angles of sessile drops. |
| first_indexed | 2024-12-24T00:22:35Z |
| format | Article |
| id | doaj.art-22227445ecf84f85bd46a37a9a7ba33a |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-24T00:22:35Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-22227445ecf84f85bd46a37a9a7ba33a2022-12-21T17:24:32ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013340401910.1051/e3sconf/202233404019e3sconf_efc2022_04019Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFCAlofari Karrar0Me´dici Ezequiel1Tajiri Kazuya2Allen Jeffrey3MTU, ME-EM DepartmentMTU, ME-EM DepartmentMTU, ME-EM DepartmentMTU, ME-EM DepartmentPercolation testing and contact angle measurements have been used to investigate the role of relative humidity on structure, mass transport, and wettability of a PEM fuel cell catalyst layer and membrane. Four samples were tested, two catalyst layers and two membranes. Structure and mass transport changes in the catalyst layers resulting from RH changes were studied in terms of percolation pressure. A clear change in the structure between low and high RH conditioning was observed. Relative humidity (RH) cycling also impacted percolation pressures with an indication of catalyst layer cracking. In addition, RH effect on wettability of both catalyst layers and membranes was studied by measuring contact angles of sessile drops.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/01/e3sconf_efc2022_04019.pdf |
| spellingShingle | Alofari Karrar Me´dici Ezequiel Tajiri Kazuya Allen Jeffrey Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC E3S Web of Conferences |
| title | Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC |
| title_full | Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC |
| title_fullStr | Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC |
| title_full_unstemmed | Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC |
| title_short | Ionomer Films Impact on The Structure, Flow Regime, and The Wettability of The Catalyst Layer of PEMFC |
| title_sort | ionomer films impact on the structure flow regime and the wettability of the catalyst layer of pemfc |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/01/e3sconf_efc2022_04019.pdf |
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