On the Cobalt Carbide Formation in a Co/TiO<sub>2</sub> Fischer–Tropsch Synthesis Catalyst as Studied by High-Pressure, Long-Term <i>Operando</i> X-ray Absorption and Diffraction
Ilse K. van Ravenhorst, Adam S. Hoffman, Charlotte Vogt, Alexey Boubnov, Nirmalendu Patra, Ramon Oord, Cem Akatay, Florian Meirer, Simon R. Bare, Bert M. Weckhuysen
Abstract
X-ray characterization data obtained at close to industrially relevant reaction conditions. Furthermore, a bimodal cobalt particle distribution was observed by high-angle annular dark-field scanning transmission electron microscopy and energy-dispersive X-ray analysis, while product formation remained relatively stable. The bimodal distribution is most probably due to the mobility and migration of the cobalt nanoparticles during FTS conditions.
Topics & Concepts
CobaltX-ray absorption spectroscopyFischer–Tropsch processCatalysisMaterials scienceAbsorption spectroscopyCobalt oxideDiffractometerTungsten carbideChemistryAnalytical Chemistry (journal)CrystallographyInorganic chemistryCrystal structureSelectivityOrganic chemistryMetallurgyPhysicsQuantum mechanicsCatalysts for Methane ReformingCatalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization Studies