| Project/Area Number |
26620002
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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 |
Physical chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MAFUNE Fumitaka 東京大学, 大学院総合文化研究科, 教授 (50262142)
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| Co-Investigator(Kenkyū-buntansha) |
宮島 謙 東京大学, 大学院総合文化研究科, 助教 (20365456)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | クラスター / ナノ粒子 / レーザー蒸発 / 熱脱離分析 / シャドウグラフ / ナノシリカ / 金属酸化物 / キャビテーションバブル / 液相レーザーアブレーション / 触媒 / 保護剤 / シリカ |
|---|
| Outline of Final Research Achievements |
Nanoparticles and sub-nanoparticles are known to exhibit specific physical and chemical properties that the bulk materials do not possess. In the present study, chemical properties of metal, metal oxide, and their complexed clusters and nanoparticles were investigated on the bases of the gas phase clusters. For the practical use of the clusters and nanoparticles, pulsed laser ablation in liquid (PLAL), versatile and physical preparation method of clusters and nanoparticles in liquid, was developed using nanometer sized silica. Especially, the cavitation bubbles generated simultaneously with nanoparticle and cluster formation were observed using a shadow graph, and the formation condition was optimized.
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