| 研究課題/領域番号 |
22KF0309
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| 配分区分 | 基金 |
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| 研究機関 | 九州大学 |
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研究代表者 |
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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| 研究分担者 |
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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| 研究期間 (年度) |
2023-03-08 – 2025-03-31
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| キーワード | Proton ceramic cells / Membrane reactor / Oefin production / CO2 reduction |
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| 研究実績の概要 |
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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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
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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| 今後の研究の推進方策 |
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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