TY - JOUR
T1 - The Role of the Electric Field in Electrofreezing
AU - Peleg, Yagel
AU - Yoffe, Alexander
AU - Ehre, David
AU - Lahav, Meir
AU - Lubomirsky, Igor
N1 - 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.
PY - 2019/12/19
Y1 - 2019/12/19
N2 - 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.
AB - 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.
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U2 - 10.1021/acs.jpcc.9b09399
DO - 10.1021/acs.jpcc.9b09399
M3 - Article
AN - SCOPUS:85076754202
VL - 123
SP - 30443
EP - 30446
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 50
ER -