Insights into Cr/SiO₂catalysts during dehydrogenation of propane: an operando XAS investigation

Abstract

<italic>In situ</italic>and<italic>operando</italic>XAS spectroscopic methods were applied to monitor the variations in the oxidation state and in the local structure of the chromium sites in a 2.0Cr/SiO_2-DHScatalyst during propane dehydrogenation under non-oxidative and different oxidative conditions.