We are pleased to announce that Olivier Vincent, researcher at the Institut Lumière Matière (Institute of Light and Matter, iLM, Lyon, France), will give the SFB 1313 "Pretty Porous Science Lecture" #30. His talk will be on "Water and solutions in nanoporous media: capillarity, osmosis and phase change".
Date: Tuesday, 13 December 2022
Time: 4:00 pm CET
Speaker: Olivier Vincent
Lecture title: "Water and solutions in nanoporous media: capillarity, osmosis and phase change"
Place: Department of Hydromechanics and Modelling of Hydrosystems, Pfaffenwaldring 61, 70569 Stuttgart, Campus Vaihingen, Room: MML
The talk will be a hybrid event. If you are interested in participating in the lecture online, please contact melanie.lipp@iws.uni-stuttgart.de
Abstract
Olivier Vincent will discuss a series of experiments that illustrate the rich physics of phase transitions and transport in nanopores, using water and salt solutions. In particular, he will first show how adding solutes to water changes its thermodynamic behavior through the measurement of evaporation/condensation isotherms. He will also show that these measurements provide useful information about how nanoscale confinements modify the conditions for crystallization and deliquescence of salts. Finally, he will present results about the dynamics of water uptake and evaporation upon humidity changes, showing different behaviors depending on the applied conditions and their history. Most of these observations can be rationalized using a combination of capillarity, osmosis and nucleation, but we also have intriguing results that we don’t fully understand yet.