The Role of the Electric Field in Electrofreezing

Yagel Peleg; Alexander Yoffe; David Ehre; Meir Lahav; Igor Lubomirsky

doi:10.1021/acs.jpcc.9b09399

The Role of the Electric Field in Electrofreezing

Yagel Peleg, Alexander Yoffe, David Ehre, Meir Lahav, Igor Lubomirsky

Research output: Contribution to journal › Article › peer-review

Abstract

Electrofreezing studies date back to the late 19th century. Since then, it has been intensively investigated, yet the mechanism of this phenomenon is still under dispute. In the presented work, we use a device composed of electrodes covered by a thin protective dielectric layer in order to generate a large electric field/surface charge and separating their effects from those of the electric current/electrochemical reactions. We demonstrate that a surface charge density of up to ∼75 nC/mm² and an electric field of up to ∼1 × 10⁸ V/m, the maximum attainable without water decomposition, do not have an effect on the freezing of supercooled water. These results prove that at supercooling smaller than 11°, even a very large electric field does not order water molecules into an ice-like configuration.

Original language	English
Pages (from-to)	30443-30446
Number of pages	4
Journal	Journal of Physical Chemistry C
Volume	123
Issue number	50
DOIs	https://doi.org/10.1021/acs.jpcc.9b09399
State	Published - 19 Dec 2019
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by the Minerva foundation with funding from the Federal German Ministry for Education and Research and the Israel Science Foundation (546/17). This research is made possible in part by the historic generosity of the Harold Perlman family.

Publisher Copyright:
Copyright © 2019 American Chemical Society.

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The Role of the Electric Field in Electrofreezing

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