2022年5月
Low- and High-Density Unknown Waters at Ice-Water Interfaces
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
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- 巻
- 13
- 号
- 19
- 開始ページ
- 4251
- 終了ページ
- 4256
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/acs.jpclett.2c00660
- 出版者・発行元
- AMER CHEMICAL SOC
Experimental confirmation of liquid polymorphs of water, high-density liquid (HDL) and low-density liquid (LDL), is desired for understanding not only the liquid state of matter but also the origin of the mysterious properties of water. However, this remains challenging because the liquid-liquid critical point of water lies in experimentally inaccessible supercooling conditions known as "no man's land". Here, we show by in situ optical microscopy that droplets and layers of low- and high-density unknown waters (LDUW and HDUW) appear macroscopically depending upon ice polymorphs at non-equilibrium interfaces between water and ices under experimentally accessible (de)pressurization conditions. These unknown waters were found to have characteristic velocities (about 20 and 100 m/s for LDUW and HDUW, respectively) different from water (about 40 m/s) and quasi-liquid layers (QLLs) (about 2 and 0.2 m/s for droplet and layer forms of QLLs, respectively). Our discoveries provide insight on liquid polymorphism of water.
- リンク情報
- ID情報
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- DOI : 10.1021/acs.jpclett.2c00660
- ISSN : 1948-7185
- Web of Science ID : WOS:000820191800001