Fundamental interfacial mechanisms underlying electrofreezing
Fundamental interfacial mechanisms underlying electrofreezing
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DOI：
10.1016/j.cis.2017.12.003
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发表时间：
2018-01-01
影响因子：
15.6
通讯作者：
Bahadur, Vaibhav
中科院分区：
文献类型：
--
作者：
Acharya, Palash V.;Bahadur, Vaibhav
本文综述了电冻结的基本界面机制（通过施加电场促进冰成核）。几十年来，电冷冻一直是一个活跃的研究课题，在食品保存、低温保存、低温和制冰等方面都有应用。有大量的文献详细介绍了实验和基于模拟的研究，旨在了解在电场和电荷存在下加速冰核的复杂机制。这项工作提供了对所有此类研究的批判性回顾。值得注意的是，以应用为重点的电冷冻研究被排除在本综述之外；这类研究在之前的文献中已经被回顾过。这篇综述只侧重于基础研究，分析了电冷冻的物理机制。回顾的主题包括电冷冻的实验研究（直流和交流电场），基于热释电的冷冻控制，电冷冻的分子动力学模拟，以及基于热力学的电冷冻解释。总的来说，可以看到电冷冻可以在控制液固相变方面取得突破性进展，并且我们目前对潜在机制的理解可以通过进一步研究各种界面效应来显着改善。(C) 2017 Elsevier B.V.版权所有
This article reviews the fundamental interfacial mechanisms underlying electrofreezing (promotion of ice nucleation via the application of an electric field). Electrofreezing has been an active research topic for many decades, with applications in food preservation, cryopreservation, cryogenics and ice formation. There is substantial literature detailing experimental and simulations-based studies, which aim to understand the complex mechanisms underlying accelerated ice nucleation in the presence of electric fields and electrical charge. This work provides a critical review of all such studies. It is noted that application-focused studies of electrofreezing are excluded from this review; such studies have been previously reviewed in literature. This review focuses only on fundamental studies, which analyze the physical mechanisms underlying electrofreezing. Topics reviewed include experimental studies on electrofreezing (DC and AC electric fields), pyroelectricity-based control of freezing, molecular dynamics simulations of electrofreezing, and thermodynamics-based explanations of electrofreezing. Overall, it is seen that electrofreezing can enable disruptive advancements in the control of liquid-to-solid phase change, and that our current understanding of the underlying mechanisms can be significantly improved through further studies of various interfacial effects coming into play. (C) 2017 Elsevier B.V. All rights reserved.