Vortrag im Rahmen der Chemisch Physikalischen Gesellschaft
X-ray absorption spectroscopy (XAS) is a powerful tool for uncovering the structure of active sites in heterogeneous catalysts. In this talk, I will show how one can design ex situ, in situ, and operando XAS experiments to decipher the descriptors of catalytic activity, distinguish active species from spectators, and detect the surface intermediates. The methodology will be illustrated by the examples from our recent works on preferential oxidation of carbon monoxide over supported Pt-FeOx catalysts, oxidative dehydrogenation of alcohols over supported VOx species promoted by titania and ceria, and CO2 hydrogenation catalysis over Cu-Ga particles.
