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High-Density Liquid Water at a Water-Ice Interface

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Title: High-Density Liquid Water at a Water-Ice Interface
Authors: Niinomi, Hiromasa Browse this author
Yamazaki, Tomoya Browse this author
Nada, Hiroki Browse this author
Hama, Tetsuya Browse this author
Kouchi, Akira Browse this author →KAKEN DB
Okada, Junpei T. Browse this author
Nozawa, Jun Browse this author
Uda, Satoshi Browse this author
Kimura, Yuki Browse this author →KAKEN DB
Issue Date: 20-Aug-2020
Publisher: American Chemical Society
Journal Title: Journal of physical chemistry letters
Volume: 11
Issue: 16
Start Page: 6779
End Page: 6784
Publisher DOI: 10.1021/acs.jpclett.0c01907
Abstract: Because ice surfaces catalyze various key chemical reactions impacting nature and human life, the structure and dynamics of interfacial layers between water vapor and ice have been extensively debated with attention to the quasi-liquid layer. Other interfaces between liquid water and ice remain relatively underexplored, despite their importance and abundance on the Earth and icy extraterrestrial bodies. By in situ optical microscopy, we found that a high-density liquid layer, distinguishable from bulk water, formed at the interface between water and high-pressure ice III or VI, when they were grown or melted in a sapphire anvil cell. The liquid layer showed a bicontinuous pattern, indicating that immiscible waters with distinct structures were separated on the interfaces in a similar manner to liquid-liquid phase separation through spinodal decomposition. Our observations not only provide a novel opportunity to explore ice surfaces but also give insight into the two kinds of structured water.
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of physical chemistry letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Type: article (author version)
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 木村 勇気

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