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High-Density Liquid Water at a Water-Ice Interface
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open access |
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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 https://pubs.acs.org/doi/10.1021/acs.jpclett.0c01907.
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Abstract
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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.
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American Chemical Society
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資源タイプ |
journal article |
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資源識別子 |
HDL
http://hdl.handle.net/2115/82514
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DOI
https://doi.org/10.1021/acs.jpclett.0c01907
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収録誌情報 |
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Journal of physical chemistry letters
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巻11
号16
開始ページ6779
終了ページ6784
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コンテンツ更新日時 |
2023-07-26 |