2009 Fiscal Year Final Research Report
Thermal behavior of water confined within mesoporous silica pores
| Project/Area Number |
19540430
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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 |
Biophysics/Chemical physics
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| Research Institution | Nihon University |
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Principal Investigator |
FUJIMORI Hiroki Nihon University, 文理学部, 准教授 (80297762)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 水 / 液体 / 融解 / 熱測定 / DSC / シリカゲル / 相転移 / ナノサイズ |
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| Research Abstract |
Differential scanning calorimetry measurements of water and NaCl aqueous solution, confined within mesoporous silica of pore diameter 1.4-45.7 nm, were performed. The freezing temperature of water within the pores decreased with decreasing pore diameter. Crystallization of pure water within the pores was not observed in samples with pore diameters of 2.2 and 1.4 nm. In the aqueous solution, the glass transition was observed, and the temperature was not dependent on pore diameter and NaCl concentration.
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