2017 Fiscal Year Final Research Report
Creation of new-type zeolite catalysts and control of active sites that enable environmentally benign, highly efficient chemical processes
| Project/Area Number |
15H04185
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Yokohama National University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
INAGAKI SATOSHI 横浜国立大学, 大学院工学研究院, 准教授 (90367037)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | ゼオライト合成 / ゼオライト触媒 / 固体酸 / DTO / 触媒活性点 |
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| Outline of Final Research Achievements |
The acid characteristics of MCM-68 (Si/Al=10) and dealuminated MCM-68 with Si/Al of 35, 60 and 107 were evaluated using FT-IR spectroscopy. Collidine adsorbed only on the external acid sites at 303 K. A comparison of the CO stretching vibration frequencies confirmed that MCM-68(10) possessed two types of Lewis acid sites as well as Brønsted acid sites. Lewis acid sites originating from extra-framework aluminum species were readily removed. In the case of Lewis acid sites associated with Al species connected to Si atoms via shared O atoms, the slightly stronger acid sites were easily removed via dealumination.
As an unexpected achievement, we succeeded in the synthesizing a novel aluminosilicate zeolite YNU-5, the first zeolite containing interconnected 12-, 12- and 8-ring pores as well as independent straight 8-ring channels.
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| Free Research Field |
触媒化学
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