Development of metal-modified covalent organic frameworks as selective photocatalysts
| Project/Area Number |
17H04798
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanomaterials chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
Kamiya Kazuhide 大阪大学, 太陽エネルギー化学研究センター, 准教授 (50716016)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥25,480,000 (Direct Cost: ¥19,600,000、Indirect Cost: ¥5,880,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2017: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
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| Keywords | 電子移動触媒 / 光触媒 / 共有結合性有機構造体 / ナノ材料 / 単一原子触媒 / 半導体 / 電極触媒 / 光-化学エネルギー変換 / 電気化学 / 部分酸化 / 光電気化学 |
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| Outline of Final Research Achievements |
In the present work, we attempted to develop (photo)electrocatalysts for selective oxidative upgrading of organics, which are composed of metal-modified covalent triazine frameworks (M-CTF). The specific achievements are as follows.
(1) A single Ru atom-modified covalent triazine framework (Ru-CTF) has selectivity for the electrooxidation of benzyl alcohol in water over the oxygen evolution reaction.
(2) The Cu-CTF/TiO2 hybrid photocatalytically reduced HNO2 without an external bias under artificial and natural sunlight. The dominant reaction product changes from N2O to NH4+ with an increase in the light intensity due to the shift of operating potentials.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では水溶液系での有機物電気化学酸化反応において、競合反応である水および触媒自身の酸化をほぼ完全に抑えることに成功した。これはM-CTF触媒がガス状炭化水素の電気化学酸化アップグレーディングなどのより有用性の高い反応へ展開できることに一定の目途がついたことを意味する。
さらに、本研究で実証した光強度およびそれに伴う作動電位の変調が光反応の選択性に及ぼす影響は、高効率な人工光合成系の構築において、必要不可欠な設計指針の一つになると考えられる。
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Report
(4 results)
Research Products
(52 results)
