Photocatalytic selective cleavage of hetero-bonds under hydrogen-gas free condition
| Project/Area Number |
16K18292
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Kochi University |
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Principal Investigator |
Imamura Kazuya 高知大学, 教育研究部総合科学系複合領域科学部門, 助教 (30750624)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 光触媒 / 化学選択的 / 水素化分解 / 選択的開裂 / パラジウム / 触媒・化学プロセス |
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| Outline of Final Research Achievements |
In the presence of a palladium-loaded TiO2 photocatalyst, the cleavage of benzyl phenyl ether in low-molecular-weight alcohol solvents under de-aerated conditions afforded toluene and phenol simultaneously in a 1:1 molar ratio. This is the first report for the photocatalytic cleavage of C-O bond. The choice of solvent also strongly affected the reaction outcome; in particular, when the reaction was carried out in 2-propanol containing 20 vol% water, no products other than toluene and phenol were obtained. Our results indicate that the utility of H-Pd formed photocatalytically is not limited to hydrogenation reactions and that the protocol described herein constitutes a new strategy for application of the photocatalytic reduction of TiO2. These results were summarized in a paper and selected on the cover of Chemical Communications.
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| Academic Significance and Societal Importance of the Research Achievements |
医薬品，染料，香料，プラスチックなど，身の回りの多くのものは石油から作られている。持続可能社会を実現するためには植物由来の再生可能資源（バイオマス）を原料とする物づくりが必要である。中でも木質系バイオマスに含まれている「リグニン」という物質は石油に代わる材料として注目されている。リグニンを化学製品の原料として利用するにはC-O結合の選択的な切断が必要であるが，この反応には厳しい反応条件が必要であり，そのため非常にエネルギー消費が大きくなる。本研究の成果は光によってこのC-O結合の開裂を実現したものであり，持続可能社会の実現に大きく貢献できる。
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Report
(5 results)
Research Products
(23 results)
