Comparative Adsorption of Acetone on Water and Ice Surfaces.
adsorption
ice surfaces
sum frequency generation spectroscopy
trace gases
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
11 Mar 2019
11 Mar 2019
Historique:
received:
28
11
2018
pubmed:
3
1
2019
medline:
3
1
2019
entrez:
3
1
2019
Statut:
ppublish
Résumé
Small organic molecules on ice and water surfaces are ubiquitous in nature and play a crucial role in many environmentally relevant processes. Herein, we combine surface-specific vibrational spectroscopy and a controllable flow cell apparatus to investigate the molecular adsorption of acetone onto the basal plane of single-crystalline hexagonal ice with a large surface area. By comparing the adsorption of acetone on the ice/air and the water/air interface, we observed two different types of acetone adsorption, as apparent from the different responses of both the free O-H and the hydrogen-bonded network vibrations for ice and liquid water. Adsorption on ice occurs preferentially through interactions with the free OH group, while the interaction of acetone with the surface of liquid water appears less specific.
Identifiants
pubmed: 30601600
doi: 10.1002/anie.201813517
pmc: PMC6767755
doi:
Types de publication
Journal Article
Langues
eng
Pagination
3620-3624Subventions
Organisme : Alexander von Humboldt-Stiftung
ID : N\A
Informations de copyright
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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