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Heterogeneous nucleation in multi-component vapor on a partially wettable charged conducting particle. I. Formulation of general equations: Electrical surface and line excess quantities

Autor(en)
M. Noppel, H. Vehkamaki, Paul Winkler, M. Kulmala, Paul Wagner
Abstrakt

Thermodynamics is applied to formulate general equations for internal energies and grand potential for a system consisting of a dielectric liquid nucleus of a new phase on a charged insoluble conducting sphere within a uniform macroscopic one- or multicomponent mother phase. The currently available model for ion-induced nucleation assumes complete spherical symmetry of the system, implying that the seed ion is immediately surrounded by the condensing liquid from all sides. We take a step further and treat more realistic geometries, where a cap-shaped liquid cluster forms on the surface of the seed particle. To take into account spontaneous polarization of surface layer molecules we introduce the electrical surface and line excess quantities.

Organisation(en)
Aerosolphysik und Umweltphysik
Externe Organisation(en)
University of Tartu, University of Helsinki
Journal
Journal of Chemical Physics
Band
139
Anzahl der Seiten
17
ISSN
0021-9606
DOI
https://doi.org/10.1063/1.4822046
Publikationsdatum
10-2013
Peer-reviewed
Ja
ÖFOS 2012
103020 Oberflächenphysik, 103029 Statistische Physik
Schlagwörter
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/9dc3f526-e17b-4442-a08f-96b74b93a8e9