Impact of effective polarisability models on the near-field interaction of dissolved greenhouse gases at ice and air interfaces

J. Fiedler; D.F. Parsons; F.A. Burger; P. Thiyam; M. Walter; I. Brevik; C. Persson; S.Y. Buhmann; M. Boström

doi:10.1039/c9cp03165k

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Impact of effective polarisability models on the near-field interaction of dissolved greenhouse gases at ice and air interfaces

Journal article

Peer reviewed

Impact of effective polarisability models on the near-field interaction of dissolved greenhouse gases at ice and air interfaces

J. Fiedler, D.F. Parsons, F.A. Burger, P. Thiyam, M. Walter, I. Brevik, C. Persson, S.Y. Buhmann and M. Boström

Physical Chemistry Chemical Physics, Vol.21(38), pp.21296-21304

2019

DOI: https://doi.org/10.1039/c9cp03165k

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Abstract

We present a theory for Casimir–Polder forces acting on greenhouse gas molecules dissolved in a thin water film. Such a nano-sized film has been predicted to arise on the surface of melting ice as stabilized by repulsive Lifshitz forces. We show that different models for the effective polarisability of greenhouse gas molecules in water lead to different predictions for how Casimir–Polder forces influence their extractions from the melting ice surface. For instance, in the most intricate model of a finite-sized molecule inside a cavity, dispersion potentials push the methane molecules towards the ice surface whereas the oxygen typically will be attracted towards the closest interface (ice or air). Previous models for effective polarisability had suggested that O2 would also be pushed towards the ice surface. Release of greenhouse gas molecules from the surface of melting ice can potentially influence climate greenhouse effects. With this model, we show that some molecules cannot escape from water as single molecules. Due to the contradiction of the results and the escape dynamics of gases from water, we extended the models to describe bubble filled with several molecules increasing their buoyancy force.

Details

Title: Impact of effective polarisability models on the near-field interaction of dissolved greenhouse gases at ice and air interfaces
Authors/Creators: J. Fiedler (Author/Creator) - University of Oslo
D.F. Parsons (Author/Creator) - Murdoch University
F.A. Burger (Author/Creator) - University of Freiburg
P. Thiyam (Author/Creator) - Lund University
M. Walter (Author/Creator) - University of Freiburg
I. Brevik (Author/Creator) - Norwegian University of Science and Technology
C. Persson (Author/Creator) - University of Oslo
S.Y. Buhmann (Author/Creator) - University of Freiburg
M. Boström (Author/Creator) - Norwegian University of Science and Technology
Publication Details: Physical Chemistry Chemical Physics, Vol.21(38), pp.21296-21304
Publisher: Royal Society of Chemistry
Identifiers: 991005544682007891
Copyright: © 2019 the Owner Societies
Murdoch Affiliation: School of Engineering and Information Technology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.89 Ionic, Molecular & Complex Liquids; 2.89.677 Liquid Water
Web Of Science research areas: Chemistry, Physical; Physics, Atomic, Molecular & Chemical
ESI research areas: Chemistry