Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance
The search for more durable supports for oxygen reduction reaction (ORR) catalyst is a topic of increasing importance in the development of polymer electrolyte fuel cells (PEFCs). Recently, tin oxide (SnO _2 ) supports have garnered attention because of their high oxidative stability. However, impro...
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IOP Publishing
2025-01-01
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| Series: | ECS Advances |
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| Online Access: | https://doi.org/10.1149/2754-2734/adb31b |
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| author | Ryuichi Murase Masanori Inaba Yoriko Matsuoka Yuji Kamitaka Shuhei Yoshino Akihiko Koiwai Tomohiro Takeshita Kensaku Kodama |
| author_facet | Ryuichi Murase Masanori Inaba Yoriko Matsuoka Yuji Kamitaka Shuhei Yoshino Akihiko Koiwai Tomohiro Takeshita Kensaku Kodama |
| author_sort | Ryuichi Murase |
| collection | DOAJ |
| description | The search for more durable supports for oxygen reduction reaction (ORR) catalyst is a topic of increasing importance in the development of polymer electrolyte fuel cells (PEFCs). Recently, tin oxide (SnO _2 ) supports have garnered attention because of their high oxidative stability. However, improving their cell performance, particularly under wet conditions, remains a challenge before their successful deployment. Herein, we expand on our previous work on carbon-free mesoporous SnO _2 -based catalyst supports and investigate the effects of ionomer content on ORR performance and cathode catalyst layer (CCL) structure. Optimization of the ionomer content resulted in a more uniform ionomer distribution and alleviation of CCL flooding and a 2-fold increase in catalytic activity under wet conditions. As a result, the mesoporous SnO _2 -based catalyst supports exhibited comparable performance to solid-core carbon supports under both wet and dry conditions. Finally, we present a summary of our progress on the development of mesoporous SnO _2 -based catalyst support and highlight critical areas of improvements needed towards their future deployment. |
| format | Article |
| id | doaj-art-cd772a4ef63448609257e9dbba1e7d12 |
| institution | DOAJ |
| issn | 2754-2734 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | ECS Advances |
| spelling | doaj-art-cd772a4ef63448609257e9dbba1e7d122025-08-20T02:45:41ZengIOP PublishingECS Advances2754-27342025-01-014101450310.1149/2754-2734/adb31bInfluence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell PerformanceRyuichi Murase0https://orcid.org/0009-0001-9721-2733Masanori Inaba1https://orcid.org/0000-0002-2292-7961Yoriko Matsuoka2Yuji Kamitaka3https://orcid.org/0000-0002-8101-5145Shuhei Yoshino4https://orcid.org/0000-0003-4021-8568Akihiko Koiwai5Tomohiro Takeshita6Kensaku Kodama7https://orcid.org/0000-0003-1120-6306Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanToyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi, 480-1192, JapanThe search for more durable supports for oxygen reduction reaction (ORR) catalyst is a topic of increasing importance in the development of polymer electrolyte fuel cells (PEFCs). Recently, tin oxide (SnO _2 ) supports have garnered attention because of their high oxidative stability. However, improving their cell performance, particularly under wet conditions, remains a challenge before their successful deployment. Herein, we expand on our previous work on carbon-free mesoporous SnO _2 -based catalyst supports and investigate the effects of ionomer content on ORR performance and cathode catalyst layer (CCL) structure. Optimization of the ionomer content resulted in a more uniform ionomer distribution and alleviation of CCL flooding and a 2-fold increase in catalytic activity under wet conditions. As a result, the mesoporous SnO _2 -based catalyst supports exhibited comparable performance to solid-core carbon supports under both wet and dry conditions. Finally, we present a summary of our progress on the development of mesoporous SnO _2 -based catalyst support and highlight critical areas of improvements needed towards their future deployment.https://doi.org/10.1149/2754-2734/adb31bfuel cells - PEMtin oxidemembrane electrode assemblymesoporous supportoxygen reduction reaction |
| spellingShingle | Ryuichi Murase Masanori Inaba Yoriko Matsuoka Yuji Kamitaka Shuhei Yoshino Akihiko Koiwai Tomohiro Takeshita Kensaku Kodama Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance ECS Advances fuel cells - PEM tin oxide membrane electrode assembly mesoporous support oxygen reduction reaction |
| title | Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance |
| title_full | Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance |
| title_fullStr | Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance |
| title_full_unstemmed | Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance |
| title_short | Influence of Ionomer Content in Pt/mesoporous SnO2 Electrodes on PEM Fuel Cell Performance |
| title_sort | influence of ionomer content in pt mesoporous sno2 electrodes on pem fuel cell performance |
| topic | fuel cells - PEM tin oxide membrane electrode assembly mesoporous support oxygen reduction reaction |
| url | https://doi.org/10.1149/2754-2734/adb31b |
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