超臨界および高圧条件下にある水と水溶液のNMRによる研究

抄録

Here is reviewed our recent research on the title subject that has led to the Award of The Japan Society of High Pressure Science and Technology, 2004. In particular, we focus on the explanation of motivations and backgrounds for selecting the research subject as well as the scientific contents. First we show what has been thought to carry out experimental and theoretical investigations of the dynamic behaviors of electrolytes in water at high pressures. Second it is described how the high-pressure solution NMR probe has been developed to attain high resolution and sensitivity required for the study of very dilute aqueous solutions at high pressures. The newly developed high-pressure probe has enabled us to examine the dynamics of water in benzene and benzene in water; in solubility they hate each other. Third it is illustrated how our recent studies have been performed on the structure, dynamics, and reactions of supercritical water. Issues discussed here are related to the environmental and energy problems to be solved to make our life and earth sustainable in the 21^st century.