| Project/Area Number |
22KF0309
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| Project/Area Number (Other) |
22F22353 (2022)
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Multi-year Fund (2023)
Single-year Grants (2022) |
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| Section | 外国 |
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| Review Section |
Basic Section 26040:Structural materials and functional materials-related
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| Research Institution | Kyushu University |
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Principal Investigator |
山崎 仁丈 九州大学, エネルギー研究教育機構, 教授 (30292246)
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| Co-Investigator(Kenkyū-buntansha) |
SHI NAI 九州大学, エネルギー研究教育機構, 外国人特別研究員
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| Project Period (FY) |
2023-03-08 – 2025-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2024: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2023: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2022: ¥600,000 (Direct Cost: ¥600,000)
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| Keywords | Proton ceramic cells / Membrane reactor / Oefin production / CO2 reduction / プロトン伝導性膜型反応器 / プロパン脱水素化反応 |
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| Outline of Research at the Start |
当研究室が昨年開発に成功した二酸化炭素耐性の高いSc置換ジルコ ン酸バリウムを電解質とした次世代プロトン伝導性固体酸化物形電解セル(P-SOC)により、オレ フィンの選択製造と二酸化炭素の資源化を同時に達成しようというものである。本研究では、エタンよりも高付加価値なプレピレンを対象に、従来 の不均一触媒では達成不可能な熱平衡を超える反応収率と高い選択性を目指す。
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| Outline of Annual Research Achievements |
This project aimed to develop efficient and reliable protonic solid oxide cells (P-SOCs) capable of achieving propane dehydrogenation and CO2 recycling at low temperatures. To date, we have successfully conducted these reactions on P-SOCs operating at temperatures as low as 275°C for 100 hours. By employing an innovative symmetrical cell configuration and applying efficient catalysts, we have demonstrated the efficient conversion of propane to propylene and CO2 to CH4, with a Faradaic efficiency of 94% and a CH4 selectivity of 97%. This study represents the initial endeavor to synthesize valuable chemicals using a ceramic membrane reactor at temperatures below 300 °C.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Overall, the research has progressed smoothly. We have established a P-SOC performance evaluation system and obtained efficient catalysts from our collaborators, ensuring the high out-put performance of P-SOC. While we have achieved high electrochemical performance, challenges remain regarding target product selectivity. We intend to focus more efforts on synthesizing valuable chemicals, such as olefins directly from CO2.
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| Strategy for Future Research Activity |
In the future, our focus will be on elucidating cathodic CO2 reduction mechanisms through in-situ FTIR experiments and DFT calculations. We plan to develop nano-sized, face-oriented catalysts to tailor the selectivity of target products. Additionally, we will take time to construct research papers for publication to share our findings and contribute to the advancement of the field.
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