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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