Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition
Solid-state PSII fuel cells fueled by photosynthetic reactions have the potential to be next-generation energy devices, but currently, they cannot generate sufficient power without a platinum catalyst, and the mediators for smooth proton transport in solid-state PSII fuels are not yet clear. In this...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Chemical Physics Impact |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667022425000088 |
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| author | Hitoki Semizo Haruyoshi Oshima Yusuke Takahashi Shoma Nishizaki Yasumitsu Matsuo Hinako Kawakami |
| author_facet | Hitoki Semizo Haruyoshi Oshima Yusuke Takahashi Shoma Nishizaki Yasumitsu Matsuo Hinako Kawakami |
| author_sort | Hitoki Semizo |
| collection | DOAJ |
| description | Solid-state PSII fuel cells fueled by photosynthetic reactions have the potential to be next-generation energy devices, but currently, they cannot generate sufficient power without a platinum catalyst, and the mediators for smooth proton transport in solid-state PSII fuels are not yet clear. In this study, a novel solid-state PSII fuel cell without a platinum catalyst was fabricated by combining PSII fuel and chitin electrolyte. As a result, high power was successfully obtained even without platinum. The solid-state PSII fuel cell was found to achieve the highest power density when using solid fuel with 8.5 × 10–1 mg of chlorophyll a (Chl-a) per 1 g of chitin. This result suggests that photosynthetic proton generation reactions are important for the power generation properties of solid-state PSII fuel cells. Furthermore, it was also found that phosphate buffer acts as a mediator of proton transport in PSII fuels and that the optimal molar ratio of phosphate buffer, chitin, and Chl-a for power generation in solid-state PSII fuel cells is 1 mol: 2 mol: 0.5 mmol. |
| format | Article |
| id | doaj-art-e0452b9abc2244e698141f3563df30fe |
| institution | Kabale University |
| issn | 2667-0224 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Physics Impact |
| spelling | doaj-art-e0452b9abc2244e698141f3563df30fe2025-01-12T05:26:12ZengElsevierChemical Physics Impact2667-02242025-06-0110100820Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode compositionHitoki Semizo0Haruyoshi Oshima1Yusuke Takahashi2Shoma Nishizaki3Yasumitsu Matsuo4Hinako Kawakami5Faculty of Science & Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka, 572-8508, JapanFaculty of Science & Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka, 572-8508, JapanFaculty of Science & Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka, 572-8508, JapanFaculty of Science & Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka, 572-8508, JapanCorresponding author.; Faculty of Science & Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka, 572-8508, JapanFaculty of Science & Engineering, Setsunan University, 17-8 Ikeda-Nakamachi, Neyagawa, Osaka, 572-8508, JapanSolid-state PSII fuel cells fueled by photosynthetic reactions have the potential to be next-generation energy devices, but currently, they cannot generate sufficient power without a platinum catalyst, and the mediators for smooth proton transport in solid-state PSII fuels are not yet clear. In this study, a novel solid-state PSII fuel cell without a platinum catalyst was fabricated by combining PSII fuel and chitin electrolyte. As a result, high power was successfully obtained even without platinum. The solid-state PSII fuel cell was found to achieve the highest power density when using solid fuel with 8.5 × 10–1 mg of chlorophyll a (Chl-a) per 1 g of chitin. This result suggests that photosynthetic proton generation reactions are important for the power generation properties of solid-state PSII fuel cells. Furthermore, it was also found that phosphate buffer acts as a mediator of proton transport in PSII fuels and that the optimal molar ratio of phosphate buffer, chitin, and Chl-a for power generation in solid-state PSII fuel cells is 1 mol: 2 mol: 0.5 mmol.http://www.sciencedirect.com/science/article/pii/S2667022425000088PhotosynthesisHydrogen sourceSolid-state fuelFuel cellBiomaterial |
| spellingShingle | Hitoki Semizo Haruyoshi Oshima Yusuke Takahashi Shoma Nishizaki Yasumitsu Matsuo Hinako Kawakami Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition Chemical Physics Impact Photosynthesis Hydrogen source Solid-state fuel Fuel cell Biomaterial |
| title | Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition |
| title_full | Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition |
| title_fullStr | Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition |
| title_full_unstemmed | Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition |
| title_short | Creation of novel solid-state PSII fuel cells without platinum anodes and determination of optimal anode composition |
| title_sort | creation of novel solid state psii fuel cells without platinum anodes and determination of optimal anode composition |
| topic | Photosynthesis Hydrogen source Solid-state fuel Fuel cell Biomaterial |
| url | http://www.sciencedirect.com/science/article/pii/S2667022425000088 |
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