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DOI	10.1073/pnas.1621058114
	Dynamics and unsteady morphologies at ice interfaces driven by D2O–H2O exchange
	Drori R.; Holmes-Cerfon M.; Kahr B.; Kohn R.V.; Ward M.D.
发表日期	2017
ISSN	0027-8424
起始页码	11627
结束页码	11632
卷号	114 期号:44
英文摘要	The growth dynamics of D2O ice in liquid H2O in a microfluidic device were investigated between the melting points of D2O ice (3.8 °C) and H2O ice (0 °C). As the temperature was decreased at rates between 0.002 °C/s and 0.1 °C/s, the ice front advanced but retreated immediately upon cessation of cooling, regardless of the temperature. This is a consequence of the competition between diffusion of H2O into the D2O ice, which favors melting of the interface, and the driving force for growth supplied by cooling. Raman microscopy tracked H/D exchange across the solid H2O–solid D2O interface, with diffusion coefficients consistent with transport of intact H2O molecules at the D2O ice interface. At fixed temperatures below 3 °C, the D2O ice front melted continuously, but at temperatures near 0 °C a scalloped interface morphology appeared with convex and concave sections that cycled between growth and retreat. This behavior, not observed for D2O ice in contact with D2O liquid or H2O ice in contact with H2O liquid, reflects a complex set of cooperative phenomena, including H/D exchange across the solid–liquid interface, latent heat exchange, local thermal gradients, and the Gibbs–Thomson effect on the melting points of the convex and concave features. © 2017, National Academy of Sciences. All rights reserved.
英文关键词	Hydrogen–deuterium exchange; Ice growth; Ice morphology; Microfluidics; Raman microscopy
语种	英语
scopus关键词	deuterium oxide; ice; water; Article; cooling; crystallization; desorption; deuterium hydrogen exchange; diffusion coefficient; force; melting point; melting temperature; microfluidics; priority journal; Raman spectrometry; surface property
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160580
作者单位	Drori, R., Department of Chemistry, New York University, New York, NY 10003, United States, Molecular Design Institute, New York University, New York, NY 10003, United States, Department of Chemistry and Biochemistry, Yeshiva University, New York, NY 10016, United States; Holmes-Cerfon, M., Courant Institute of Mathematical Sciences, New York University, New York, NY 10012, United States; Kahr, B., Department of Chemistry, New York University, New York, NY 10003, United States, Molecular Design Institute, New York University, New York, NY 10003, United States; Kohn, R.V., Courant Institute of Mathematical Sciences, New York University, New York, NY 10012, United States; Ward, M.D., Department of Chemistry, New York University, New York, NY 10003, United States, Molecular Design Institute, New York University, New York, NY 10003, United States
推荐引用方式 GB/T 7714	Drori R.,Holmes-Cerfon M.,Kahr B.,等. Dynamics and unsteady morphologies at ice interfaces driven by D2O–H2O exchange[J],2017,114(44).
APA	Drori R.,Holmes-Cerfon M.,Kahr B.,Kohn R.V.,&Ward M.D..(2017).Dynamics and unsteady morphologies at ice interfaces driven by D2O–H2O exchange.Proceedings of the National Academy of Sciences of the United States of America,114(44).
MLA	Drori R.,et al."Dynamics and unsteady morphologies at ice interfaces driven by D2O–H2O exchange".Proceedings of the National Academy of Sciences of the United States of America 114.44(2017).