Distinguished iNANO and iMAT Lecture: Heterogeneous Chemistry at Liquid/Vapor Interfaces Investigated with Photoelectron Spec-troscopy

Professor Hendrik Bluhm, Department of Inorganic Chemistry, Fritz Haber Institut, Berlin, Germany

Heterogeneous Chemistry at Liquid/Vapor Interfaces Investigated with Photoelectron Spectroscopy

Aqueous solution/vapor interfaces govern important phenomena in the environment and atmosphere, including the uptake and release of trace gases by aerosols and CO₂ sequestration by the oceans.[1]  A detailed understanding of these processes requires the investigation of liquid/vapor interfaces with chemical sensitivity and interface specificity under ambient conditions, i.e., temperatures above 200 K and water vapour pressures in the millibar to tens of millibar pressure range.  This talk will discuss opportunities and challenges for investigations of liquid/vapor interfaces using X-ray photoelectron spectroscopy and describe some recent experiments that have focused on the propensity of certain ions and the role of surfactants at the liquid/vapor interface.

[1] O. Björneholm et al., Chem. Rev. 116, 7698 (2016).

Host: Associate Professor Jeppe Vang Lauritsen, iNANO & Department of Chemistry

Coffee, tea and bread will be served from 10:00 in front of the auditorium.