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Impact of effective...
Impact of effective polarisability models on the near-field interaction of dissolved greenhouse gases at ice and air interfaces
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- Fiedler, Johannes (författare)
- Albert-Ludwigs University Freiburg,University of Oslo
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- Parsons, Drew F. (författare)
- Murdoch University
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- Burger, Friedrich Anton (författare)
- Albert-Ludwigs University Freiburg
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- Thiyam, Priyadarshini (författare)
- Lund University,Lunds universitet,Beräkningskemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Computational Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Walter, Michael (författare)
- Fraunhofer Institute for Mechanics of Materials (IWM),Albert-Ludwigs University Freiburg
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- Brevik, I. (författare)
- Norwegian University of Science and Technology
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- Persson, Clas (författare)
- University of Oslo
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- Buhmann, Stefan Yoshi (författare)
- Albert-Ludwigs University Freiburg
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- Boström, Mathias (författare)
- Norwegian University of Science and Technology,University of Oslo
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(creator_code:org_t)
- 2019
- 2019
- Engelska 9 s.
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Ingår i: Physical chemistry chemical physics : PCCP. - : Royal Society of Chemistry (RSC). - 1463-9084 .- 1463-9076. ; 21:38, s. 21296-21304
- Relaterad länk:
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http://dx.doi.org/10...
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http://arxiv.org/pdf...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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