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Neutron scattering on an aqueous sodium chloride solution in the gigapascal pressure range

塩化ナトリウム水溶液のギガパスカル圧力領域での中性子散乱

山口 敏男*; 吉田 亨次*; 町田 真一*; 服部 高典   

Yamaguchi, Toshio*; Yoshida, Koji*; Machida, Shinichi*; Hattori, Takanori

3mol/kg NaCl重水溶液を0.1MPa/298K, 1GPa/298K, 1GPa/523K, 4GPa/523Kの温度圧力条件において中性子散乱測定した。また、得られたデータにEmpirical potential structure refinement法を適用し、対相関関数,配位数分布,角度分布(配向相関),空間密度関数(3次元構造)を抽出した。それらの結果から、イオンの溶媒和と会合、溶媒水構造の圧力と温度依存性を議論した。

Neutron scattering measurements were performed on an aqueous 3 mol/kg NaCl solution in D$$_2$$O at temperature and pressure conditions of 0.1 MPa/298K, 1 GPa/298K, 1 GPa/523K, and 4 GPa/523K. The empirical potential structure refinement method was applied to the obtained data to extract the pair correlation function, coordination number distribution, angular distribution (orientation correlation), and spatial density function (3-D structure). From those results, pressure and temperature dependence of solvation and association of ions and solvent-water structure were discussed.

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パーセンタイル:18.68

分野:Chemistry, Physical

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