An In Situ Laser Raman Spectroscopy Study on the Structure of Supercritical Water.

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概要

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• The structure of high-pressure and supercritical water has been examined up to 510 °C and 40 MPa with in situ laser Raman spectroscopy. At 24 MPa or below, the hydrogen bonding in the tetrahedral configuration becomes weaker and this structure breaks with increasing temperature, especially near the critical temperature, above which small clusters like dimers are dominant species. At higher pressures, a similar but slight structural change occurs; however, the tetrahedral configuration is predominant above the critical temperature. Near the critical point, short-lived tetrahedral configurations are significantly increased and coexist with dimer and monomer structures at equilibrium.

• 日本高圧力学会の論文

著者

• 生島 豊

  工業技術院東北工業技術研究所

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• An In Situ Laser Raman Spectroscopy Study on the Structure of Supercritical Water.

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