Spontaneous liquid-liquid phase separation of water

被引：82

作者：

Yagasaki, Takuma ^{[1
]}

Matsumoto, Masakazu ^{[1
]}

Tanaka, Hideki ^{[1
]}

机构：

[1] Okayama Univ, Fac Sci, Dept Chem, Kita Ku, Okayama 7008530, Japan

来源：

PHYSICAL REVIEW E | 2014年 / 89卷 / 02期

关键词：

SUPERCOOLED WATER; CRITICAL-POINT; MOLECULAR-DYNAMICS; CONDENSED PHASES; GLASSY WATER; TRANSITION; DENSITY; MODEL; TRANSFORMATION; SIMULATIONS;

D O I：

10.1103/PhysRevE.89.020301

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report a molecular dynamics simulation demonstrating a fast spontaneous liquid-liquid phase separation of water and a subsequent slow crystallization to ice. It is found that supercooled water separates rapidly into low-and high-density domains so as to reduce the surface energy in the rectangular simulation cell at certain thermodynamic states. The liquid-liquid phase separation, which is about two orders of magnitude faster than the crystallization, suggests a possibility to observe this phenomenon experimentally.

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页数：5

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