Supercooling-Promoting (Anti-ice Nucleation) Substances

Area of Science:

• Physical Chemistry
• Materials Science

Background:

• Supercooling-promoting substances (SCPSs) are critical for controlling ice nucleation in aqueous solutions.
• Understanding SCPSs' interaction with ice nucleators (INs) is key to harnessing their properties.

Purpose of the Study:

• To comprehensively review known SCPSs, their experimental conditions, and supercooling capability (SCC).
• To present original research showcasing the functional properties of SCPSs.
• To elucidate the mechanisms behind SCPSs' diverse effects on supercooling.

Main Methods:

• Literature review of identified SCPSs, including chemical identities and experimental parameters.
• Analysis of supercooling capability (SCC) data across various SCPSs and ice nucleators (INs).
• Original experimental study to demonstrate SCPS functional properties.

Main Results:

• Numerous SCPSs were identified that promote supercooling by reducing ice nucleation capability (INC) non-colligatively.
• SCC varies significantly based on the type of IN, with heterogeneous nucleation showing greater SCPS influence.
• Some SCPSs provide enhanced stability to the supercooled state, resisting mechanical disturbance and reducing sublimation.

Conclusions:

• SCPSs effectively reduce freezing temperatures through modified ice nucleation.
• The efficacy and functional diversity of SCPSs are highly dependent on the specific IN.
• Further research is needed to fully determine the mechanisms underlying SCPS functions.