Presentation 'Wetting transitions and electrolyte solutions' by Dr. Markus Bier on February 19
You are kindly invited for the presentation of Dr. Markus Bier, from the Max-Planck Institute in Stuttgart, on Wednesday February 19 at 14.00 hrs.
This presentation will be held in ZH286.
The title of his abstract is: Wetting transitions and electrolyte solutions.
Recent theoretical investigations on the wetting of charged walls by an
electrolyte solution are reported. First a brief reminder of the phenomenology
of wetting, the classification of wetting transitions and the concept of the
effective interface potential is given. Next a lattice model of a charged wall
in contact with a semi-infinite electrolyte solution is described which allows
to determine the complete surface phase diagram, including the variation of the
wetting temperature with the ionic strength and the surface charge density.
Finally, it turns out that ions tend to promote first-order wetting
transitions. In order to understand this phenomenon, a generic analysis of the
effective interface potential in the presence of ions is discussed.