Dr. Silvina Gatica
Department of Physics & Astronomy, Howard University
February 15, 3:40 PM
Thirkield Hall (Physics), room 103
Matter in Nanoscale Confinement
When a solid porous substrate is placed in contact with a vapor, a thin film rapidly covers it. This film, which can be as thin as a monoatomic layer, is a “phase” in equilibrium with its own vapor and can reach the surface of every pore in the substrate. This phenomenon is called “adsorption” and is a consequence of the Van der Waals attraction between molecules. In this seminar,I will talk about the methods and models used to study adsorption. I will show examples of classical systems (noble gases, water-nitrogen and carbondioxide-methane mixtures), and quantum systems (Helium 3 and 4) in MOFs, slabs and nanotubes.
Refreshments will be served at 3:30pm