onr:"swepub:oai:gup.ub.gu.se/64500"
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Formation of water-ammonia ice on graphite studied by elastic helium scattering
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- Suter, Martina, 1966 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry
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- Andersson, Patrik U, 1970 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry
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- Pettersson, Jan B. C., 1962 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry
- (creator_code:org_t)
- Elsevier BV, 2007
- English.
- In: Chemical Physics Letters. - : Elsevier BV. - 0009-2614. ; 445, s. 208-212
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Helium and light scattering experiments have been performed to study the formation of water–ammonia ice layers on graphite at 110–160 K. Ice formation is mainly governed by the partial water pressure, but the presence of ammonia enhances the formation rate and influences the layer properties. Ice formed at temperatures <140 K wets the surface, while ice formed at higher temperatures does not. At temperatures around 140 K ammonia destabilizes the two-dimensional ice layers and a dewetting transition is observed at a surface coverage of 90–95%.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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