| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
Confined water inside single-walled carbon nanotubes (SWCNTs) of diameters moere than 1.45 nm was studied by several experimental methods such as x-ray diffraction experiments and NMR measurements, and molecular dynamics calculations. The findings are as follows: (1) The mechanism for a wet-dry transition of the confined water was suggested. (2) The confined water continues fast molecular rotation until ca. 220 K. (3) Upon cooling below 220 K, the confined water undergoes a discontinuous transition at Tc which is dependent on the SWCNT diameters. These results provide new insights into the properties of confined water inside hydrophobic pores, but also contain information for further studies into the unsolved properties of bulk water.
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