Time-Resolved XAS Investigation of the Local Environment and Evolution of Oxidation States of a Fischer–Tropsch Ru–Cs/C Catalyst

Here we present a time-resolved in situ X-ray absorption spectroscopy investigation of the local chemical environment and the electronic structure of the active metal (Ru) and the promoter (Cs) present in catalysts supported over high-surface-area graphite. These catalysts were submitted to a reduction treatment under hydrogen gas and then to alternate atmospheres of Fischer–Tropsch reactants, CO/He, and H2/He atmospheres, respectively. This...