| 研究課題/領域番号 |
21F21399
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| 配分区分 | 補助金 |
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| 研究機関 | 京都大学 |
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研究代表者 |
高岡 昌輝 京都大学, 工学研究科, 教授 (80252485)
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| 研究分担者 |
CAI JIABAI 京都大学, 工学(系)研究科(研究院), 外国人特別研究員
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| 研究期間 (年度) |
2021-11-18 – 2024-03-31
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| キーワード | Catalyst / Characterization |
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| 研究実績の概要 |
The single-atom modified TiZrO4/M (Cu, Fe, Co, Ni) porous hollow sphere catalyst was synthesized by adjusting the reaction conditions such as the dosage of metal salt precursor, the temperature of programmed stepwise calcination temperature and single-atom co-catalyst loading using isovolume vacuum impregnation and co-calcination method.
The catalysts were characterized and analyzed by means of SEM, TEM, ACTEM, XPS, XRD, BET, and EXAFS, revealing the formation mechanism of functional nanomaterials. XRD analyses revealed the crystallographic structure of the catalyst. The surface chemical compositions and valence state of the catalysts were measured by XPS. The localized microstructural information of single-atom in catalyst was verified by EXAFS.
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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
Currently, we have completed the first step of the research plan on time. The preparation of high-loading single-atom modified TiZrO4/M (Cu, Fe, Co, Ni) porous hollow sphere catalyst was finished. The characterization and analysis (SEM, TEM, STEM, XPS, XRD, BET and EXAFS) of the catalyst have also been completed on time.
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| 今後の研究の推進方策 |
The next step of research is also underway. The catalytic oxidation degradation mechanism of humic substances by the TiZrO4/M catalytic reaction system will be discussed from the aspects of important parameters such as humic acid initial solution concentration, air/high purity oxygen, reaction temperature, catalyst dosage and single-atom co-catalyst loading. The degradation mechanism of catalytic and the pathway of humic acid will be revealed in the next step.
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