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