Ice nucleation in presence of atmospheric aerosols is of great significance to Earth's climate, biological phenomena, and may research fields [1-2]. Atmospheric aerosols such as sea-salt, mineral dust, volcanic dust, soot, or... [ view full abstract ]
Ice nucleation in presence of atmospheric aerosols is of great significance to Earth's climate, biological phenomena, and may research fields [1-2]. Atmospheric aerosols such as sea-salt, mineral dust, volcanic dust, soot, or some organics generally play a vital role for the formation of ice particles in the atmosphere [3]. Therefore, understanding the relevance between nucleation processes and the structure at the solid-liquid interfaces is important for studying heterogeneous nucleation. There are several experimental as well as theoretical works of heterogeneous nucleation, which reports the vast range of ice nucleation in the presence of atmospheric particles. [3] However, study of nucleation behavior from solutions on a solid surface is not yet well established. Recently, Anim-Danso et al.[4] investigated the nucleation and freezing of salt solutions on solid surfaces using infrared–visible sum frequency generation spectroscopy . The authors however could not characterize the kinetics of and ice nucleation behavior of salt solutions on solid surfaces.
In this study, we present a molecular dynamics study to understand the ice crystallization mechanism of supercooled water in presence of solute molecules on graphite surface. Our aim is to elucidate the effect salt concentrations on ice crystallization of supercooled water on surfaces. Herein we evaluate the freezing temperature, nucleation rate and explore the mechanism of ice nucleation on a surface with varying salts concentration in the supercooled water.
References
1. Abbatt, J.; Benz, S.; Cziczo, D.; Kanji, Z.; Lohmann, U.; Möhler, O. Science 2006, 313, 1770.
2. Zhang, R.; Li, G.; Fan, J.; Wu, D. L.; Molina, M. J. Proc. Natl. Acad. Sci. U.S.A. 2007, 104, 5295.
3. Murray, B. J.; O’Sullivan, D.; Atkinson, J. D.; Webb, M. E. Chem. Soc. Rev. 2012, 41, 6519.
4. Anim-Danso, E.; Zhang, Y.; Dhinojwala, A. J. Am. Chem. Soc. 2013, 135, 8496–8499.
