Effects of dipole polarization of water molecules on ice formation under an electrostatic field

Sun, Wei; Xu, Xing; Zhang, Hong; Xu, Chao

doi:10.1016/j.cryobiol.2007.10.173

Cited by 108 publications

(65 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If correct, this preferred orientation has broader implications for the behavior of water under these relatively modest approximately 10 6 V∕m field strengths. Affecting phenomena such as ice formation in supercooled water (15), transport through biological cell membranes (16), (where potential differences are often of comparable magnitude), and electrohydrodynamic behavior, which is typically modeled assuming an unchanged local molecular structure (7).…”

mentioning

confidence: 99%

Structure of the floating water bridge and water in an electric field

Skinner

Benmore

Shyam

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

The floating water bridge phenomenon is a freestanding ropeshaped connection of pure liquid water, formed under the influence of a high potential difference (approximately 15 kV). Several recent spectroscopic, optical, and neutron scattering studies have suggested that the origin of the bridge is associated with the formation of anisotropic chains of water molecules in the liquid. In this work, high energy X-ray diffraction experiments have been performed on a series of floating water bridges as a function of applied voltage, bridge length, and position within the bridge. The two-dimensional X-ray scattering data showed no directiondependence, indicating that the bulk water molecules do not exhibit any significant preferred orientation along the electric field. The only structural changes observed were those due to heating, and these effects were found to be the same as for bulk water. These X-ray scattering measurements are supported by molecular dynamics (MD) simulations which were performed under electric fields of 10 6 V∕m and 10 9 V∕m. Directional structure factor calculations were made from these simulations parallel and perpendicular to the E-field. The 10 6 V∕m model showed no significant directional-dependence (anisotropy) in the structure factors. The 10 9 V∕m model however, contained molecules aligned by the E-field, and had significant structural anisotropy.water electric field | pair distribution function | temperature dependence | high voltage

show abstract