Interactions of oxygen with MoS2 crystals – online seminar

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The AGH UST Academic Center for Materials and Nanotechnology invites to a virtual seminar in the series “Krakow Condensed Matter Seminar” which will be held on 28th April 2021, at 9.00 am.

A lecture entitled “Interactions of oxygen with MoS2 crystals” will be presented by Professor Robert Szoszkiewicz (Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw).

Link for participants

Abstract

For numerous applications of microscopic MoS2 crystals one must understand their oxidation reactions in air and water. In this seminar, I will present the studies of microscopic heat-induced oxidation and oxidative etching in the case of thick, mechanically exfoliated, geological 2H MoS2 crystals in air. I will discuss particular reaction mechanisms and show how to differentiate MoO3 oxides and their derivatives onto such surfaces. In order to do so, we combined XPS, AES, XAS, Raman and AFM (topography, friction, Kelvin Probe) measurements on the MoS2 flakes.

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