| Project/Area Number |
25630355
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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 |
Reaction engineering/Process system
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKUBO Tatsuya 東京大学, 工学(系)研究科(研究院), 教授 (40203731)
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| Co-Investigator(Kenkyū-buntansha) |
脇原 徹 東京大学, 工学(系)研究科(研究院), 准教授 (70377109)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | ゼオライト / 結晶化 / 流通合成 / 微細化 |
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| Outline of Final Research Achievements |
Size reduction in zeolites has been proven to exert major impact on their catalytic performances. Our group recently discovered a two-stage top-down bead milling and post-milling recrystallization mechanism responsible for downsizing zeolites to nano scale. Herein,remarkable size transformation advancement using in situ bead-milling recrystallization for the production of ultrasmall
zeolite A with high crystallinity has been achieved. It is possible to achieve a drastic size reduction for zeolite A from 3 μm to less than 100 nm within 15 minutes at around 80 degrees. Structural elucidation of the samples were performed by X-ray diffraction and electron microscopes. The combined mechanical and heat energy as a function of time were observed to be crucial for deciding the particulate size and crystallinity of the samples.
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