| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
|
|---|
| Outline of Final Research Achievements |
Structural fluctuation of imidazolium-based ionic liquids(ILs) + carbon dioxide systems was evaluated from the microscopic, mesoscopic and macroscopic perspective. Density of the systems was measured by X-ray absorption method and excess molar volume was evaluated to investigate volumetric behaviour under carbon dioxide absorption process up to 20 MPa. A V-shaped density plot was observed, and three types of expanded/compressed trends were classified based on the excess molar volume of the IL. Volumetric behaviour of IL strongly depends on carbon dioxide amount absorbed in IL's cavities.
Pressure dependence of Raman spectra indicates that carbon dioxide is absorbed in ILs physically, and the state of carbon dioxide aggregation absorbed in ILs does not change remarkably even at higher pressure range.
|
