Two-dimensional bilayer ice in coexistence with three-dimensional ice without confinement.

Area of Science:

• Physical Chemistry
• Materials Science
• Nanotechnology

Background:

• Icing is crucial in physical-chemical processes.
• Nanoscale confinement is typically needed for 2D ice formation.
• Coexistence of 2D and 3D ice without confinement is poorly understood.

Purpose of the Study:

• Investigate the formation of 2D and 3D coexisting ice without confinement.
• Characterize the liquid-solid interface interaction.
• Understand 2D ice growth mechanisms and deicing properties.

Main Methods:

• Identification of a critical surface energy parameter for ice formation.
• Analysis of metastable edge structures for 2D ice growth.
• Prediction of phase diagrams (temperature, pressure, energy parameters).

Main Results:

• A critical surface energy parameter determines the formation of coexisting 2D and 3D ice.
• 2D ice growth mechanisms involve metastable edge structures.
• Phase diagrams predict states of water (liquid, 2D ice, 3D ice) under varying conditions.
• Ice adhesion strength correlates linearly with the ratio of ice-surface interaction energy to ice temperature.

Conclusions:

• This study reveals conditions for forming coexisting 2D and 3D ice without confinement.
• The findings offer insights into ice structure, dynamics, and deicing.
• Provides a guide for future experimental studies on nanoscale ice formation.