| Project/Area Number |
09650857
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
触媒・化学プロセス
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| Research Institution | TOKYO INSTITUTE OF TECHNOLOGY |
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Principal Investigator |
BABA Toshihide Tokyo Institute of Technology Faculty of Engineering, Associate Professor, 工学部, 助教授 (50165057)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1998: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1997: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | ^1H MAS NMR / Zeolite / Acidic Protons / Solid-acid / Catalyst / Metallisilocate / モビリティー |
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| Research Abstract |
The dynamic nature of the protons in zeolites such as H-ZSM-5, metallosilicates molecular sieves and heteropoly compounds was examined by temperature dependence of ^1H MAS NMR in the range of 298 and 473 K.The temperature dependent line shape of ^1H MAS NMR spectra of acidic protons in zeolites showed the first and unambiguous evidence for proton migration in zeolite structure. The dynamic property of protons was a more sensitive measure for the activity of protons than the static parameters such as NMR chemical shift and IR band position of OH bonds.
The variable temperature ^1H MAS NMR is a very useful technique for understanding dynamic properties of protons in solid-acids. The dynamic property is an important factor influencing of the catalytic activity of a solid-acid catalyst.
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