The Remarkable Ways in Which Gases Dissolve and React in Water

Event Dates: 

Wednesday, October 18, 2017 - 4:00pm

CTQM Seminar Type: 

  • Related Seminar Series

Speaker Name(s): 

Gilbert Nathanson

Speaker Affiliation(s): 

University of Wisconsin, Madison

Abstract, Event Details: 

 Interfacial reactions between atmospheric gases and sea spray play a vital role in our air quality and climate.  These reactions also display fascinating dynamics at the atomic scale.  From this microscopic perspective, the interfacial encounter begins when gas molecules strike the surface of an aqueous solution that might contain ions and biological molecules.  We rely on understanding the physics of these gas-liquid collisions to construct a “blow-by-blow” picture of the solvation and reaction of acids, bases, and oxidizers in such complex solutions.  I will describe experiments using microjets and coated wheels that enable us to explore sea-spray mimics inside a vacuum chamber and help reveal how aerosol-mediated reactions takes place.