The molecular-scale growth kinetics of ice from water in the presence of air molecules are still poorly understood, despite their importance for understanding ice particle formation in nature. In this study, a molecular dynamics simulation is conducted to elucidate the molecular-scale growth kinetics at the interface between a (111) plane of cubic ice and water in the presence of N2 molecules. Two potential models of N2 molecules with and without atomic charges are examined. For both models, N2 molecules bind stably to the interface for a period of 1 ns or longer, and the stability of the binding is higher for the charged model than for the noncharged model. Free-energy surfaces of an N2 molecule along the interface and along an ideal (111) plane surface of cubic ice suggest that for both models, the position where an N2 molecule binds stably is different at the interface and on the ideal plane surface, and the stability of the binding is much higher for the interface than for the ideal plane surface. For both models, stacking-disordered ice grows at the interface, and the formation probability of a hexagonal ice layer in the stacking-disordered ice is higher for the charged model than for the uncharged model. The formation probability for the hexagonal ice layer in the stacking-disordered ice depends not only on the stability of binding but also on the positions where N2 molecules bind to the underlying ice and the number of N2 molecules that bind stably to the underlying ice.
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28 September 2022
Research Article|
September 22 2022
Effect of nitrogen molecules on the growth kinetics at the interface between a (111) plane of cubic ice and water
Special Collection:
Fluids Meet Solids
Hiroki Nada
Hiroki Nada
a)
(Investigation, Methodology, Writing – original draft)
National Institute of Advanced Industrial Science and Technology (AIST)
, 16-1 Onogawa, Tsukuba 305-8569, Japan
a)Author to whom correspondence should be addressed: hiroki.nada@aist.go.jp
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a)Author to whom correspondence should be addressed: hiroki.nada@aist.go.jp
Note: This paper is part of the JCP Special Topic on Fluids Meets Solids.
J. Chem. Phys. 157, 124701 (2022)
Article history
Received:
June 30 2022
Accepted:
August 26 2022
Citation
Hiroki Nada; Effect of nitrogen molecules on the growth kinetics at the interface between a (111) plane of cubic ice and water. J. Chem. Phys. 28 September 2022; 157 (12): 124701. https://doi.org/10.1063/5.0106842
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