| Project/Area Number |
26620154
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Energy-related chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
Ohkubo Kei 大阪大学, 工学(系)研究科(研究院), 教授 (00379140)
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| Co-Investigator(Renkei-kenkyūsha) |
FUKUZUMI Shunichi 大阪大学, 大学院工学研究科, 名誉教授 (40144430)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 光触媒 / 電子移動 / レーザー光 / ナノカーボン / フラーレン / ナノチューブ / 一重項酸素 / 水素発生 / ナノ微粒子 / 有機触媒 / 光電子移動 / カーボンナノチューブ / 有機微粒子 / レーザーフラッシュフォトリシス / 光反応 / 水素 / 光線力学療法 / 励起状態 |
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| Outline of Final Research Achievements |
Metal-free photocatalytic hydrogen evolution occurred efficiently in benzene containing single-walled carbon nanotubes under laser irradiation at 532 nm with an extremely high turnover number of 2 000 000 and a high quantum yield of 130%.
Laser pulse irradiation of a deaerated aqueous solution containing the solid state lithium ion-encapsulated fullerene resulted in the formation of highly dispersed nano-aggregates (Li+@C60)n. Photoirradiation of an O2-saturated D2O solution containing (Li+@C60)n gave singlet oxygen with 55% quantum yield, leading to efficient double-stranded DNA cleavage.
In conclusion, highly dispersed nanocarbons have new catalytic properties for hydrogen evolution and singlet oxygen generation.
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