| 研究課題/領域番号 |
23K20057
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| 補助金の研究課題番号 |
19H02558 (2019-2023)
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| 研究種目 |
基盤研究(B)
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| 配分区分 | 基金 (2024)
補助金 (2019-2023) |
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| 応募区分 | 一般 |
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| 審査区分 |
小区分28030:ナノ材料科学関連
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| 研究機関 | 九州大学 |
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研究代表者 |
LYTH Stephen 九州大学, 水素エネルギー国際研究センター, 准教授 (50618824)
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| 研究分担者 |
MUFUNDIRWA ALBERT 公益財団法人高輝度光科学研究センター, 散乱・イメージング推進室, 博士研究員 (40898152)
吉岡 聰 九州大学, 工学研究院, 助教 (50452818)
宮嶋 陽司 金沢大学, 機械工学系, 准教授 (80506254)
ハリントン ジョージ 九州大学, 持続的共進化地域創成拠点, 特任助教 (20753718)
西原 正通 九州大学, 次世代燃料電池産学連携研究センター, 准教授 (40415972)
林 灯 九州大学, 水素エネルギー国際研究センター, 教授 (60443214)
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| 研究期間 (年度) |
2019-04-01 – 2024-03-31
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| 研究課題ステータス |
留保 (2024年度)
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| 配分額 *注記 |
17,420千円 (直接経費: 13,400千円、間接経費: 4,020千円)
2024年度: 2,600千円 (直接経費: 2,000千円、間接経費: 600千円)
2023年度: 2,600千円 (直接経費: 2,000千円、間接経費: 600千円)
2022年度: 2,600千円 (直接経費: 2,000千円、間接経費: 600千円)
2021年度: 2,600千円 (直接経費: 2,000千円、間接経費: 600千円)
2020年度: 3,770千円 (直接経費: 2,900千円、間接経費: 870千円)
2019年度: 5,850千円 (直接経費: 4,500千円、間接経費: 1,350千円)
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| キーワード | Electrochemistry / Carbon / Hydrogen / non-PGM / ORR / electrochemistry / carbon / platinum-free / oxygen reduction / Pt-free / carbon nanomaterials / Electrochemistrty / Platinum-free / PEMFC / In-situ characterisation / Oxygen Reduction Reaction |
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| 研究開始時の研究の概要 |
Polymer electrolyte fuel cells convert hydrogen to electricity, heat, and water, and will help decrease CO2 emissions. However, they are expensive because of the platinum electrocatalyst. Cheaper catalysts based on nanostructured iron-decorated nitrogen-doped carbon (Fe-N-C) are being developed. Their performance is improving, but fundamental questions remain. Here we focus on two: i) How do Fe-N-C catalysts form during synthesis; and ii) How do they degrade during operation? These will be answered using advanced in-situ techniques at high temperature or during electrochemical tests.
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| 研究実績の概要 |
Performed catalyst synthesis, characterisation and variation of synthesis parameters (temperature, nitrogen content, metal loading). Investigated alternative metal precursors. Clarified effects of different heat treatment parameters on activity of catalysts, linking changes in activity to pore size distribution and active site density. Clarified how metal precursors decompose during heat treatment to form active sites on N-doped carbon supports, using in situ X-ray absorption spectroscopy. Attended Charles University for high temperature XPS measurements. Performed durability experiments. We have extended to research to alternative metals like Sn and Co. The results were presented at conferences, published in a book, a book chapter, and several other manuscripts are in preparation.
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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
The project is proceeding according to plan.
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| 今後の研究の推進方策 |
We will continue with the original plan, focusing on durability testing of the designed electrocatalysts, and membrane electrode assembly (MEA) tests. We will continue investigation of alternative metals and high temperature in-situ characterisation techniques. We will visit Saga Beam Line several times to continue our XAS investigation. We will attend conferences to present our work, and push to publish the data we already collected in peer reviewed journals.
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