2010 Fiscal Year Final Research Report
Microscopic Studies on Water and Nuclides inside High-Temperature and -Pressure Bentonite Clay using NMR
| Project/Area Number |
21760706
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TSUKAHARA Takehiko Tokyo Institute of Technology, 原子炉工学研究所, 助教 (10401126)
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| Project Period (FY) |
2009 – 2010
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| Keywords | NMR / ベントナイト / 水 / ナノ空間 / 緩和 |
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| Research Abstract |
We developed a NMR system equipped with a high-pressure cell for measuring water properties confined in nanoporous materials such as silica beads and bentonite clays. The NMR relaxation times and diffusion coefficients of the confined water molecules were examined. From these results, we found that the molecular motions of the confined water were inhibited compared with bulk water, and that their motions depended strongly on the pressures. Moreover, a novel NMR probe, which can examine the effects on ions for the confined water, was constructed.
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