| Project/Area Number |
17F17083
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | The University of Tokyo |
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Principal Investigator |
大久保 達也 東京大学, 大学院工学系研究科(工学部), 教授 (40203731)
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| Co-Investigator(Kenkyū-buntansha) |
XU LE 東京大学, 工学(系)研究科(研究院), 外国人特別研究員
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| Project Period (FY) |
2017-04-26 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2018: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2017: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | layered zeolite / Layered zeolite / zeolite structure / structure transformation |
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| Outline of Annual Research Achievements |
First, the control of the zeolitic layer stacking with different crystal symmetry elements was focused in this research. Under controlled conditions, the “dimer” and “monomer” organics of 1-ethyl-3-methylimidazolium selectively direct different, but related, germanosilicates, the ECNU-16 with a new topology and the existing IM-16 with the UOS topology, respectively. The comprehensive computational study based on the molecular mechanic simulations revealed that the zeolite phase selectivity was determined by the unique space-filling behavior of the “dimer” and “monomer” organics, which was closely correlated with their rotation freedom, as well as the included volume of host zeolite channels.
On the other hand, a Ge-recycling strategy that realized the topotatic transformation between different lamellar zeolitic precursors (fer-type and pcr-type) through three-dimensional (3D) germanosilicate UTL was discovered in this research. The discovery of this Ge-recycling process enabled to switch the lamellar zeolitic precursor from one structure to the other, both of which could be further derived of diverse zeolites. This study established new relationships not only between structurally distinct lamellar zeolites but also two families of zeolitic materials.
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| Research Progress Status |
平成30年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
平成30年度が最終年度であるため、記入しない。
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