Probing coke formation during the methanol-to-hydrocarbon reaction on zeolite ZSM-5 catalyst at the nanoscale using tip-enhanced fluorescence microscopy
Siiri Bienz, Sophie H. van Vreeswijk, Yashashwa Pandey, Giovanni Luca Bartolomeo, Bert M. Weckhuysen, Renato Zenobi, Naresh Kumar
Abstract
, deactivated catalyst). Furthermore, TEFL nanoscale imaging with ∼35 nm spatial resolution revealed that formation of coke species on the zeolite ZSM-5 surface is non-uniform and a relatively larger amount of coke is formed at the crystal steps, indicating a higher initial catalytic activity.
Topics & Concepts
CokeZeoliteCatalysisZSM-5Nanoscopic scaleGraphiteChemical engineeringFluorescenceMethanolChemistryHydrocarbonMaterials scienceNanotechnologyOrganic chemistryOpticsEngineeringPhysicsZeolite Catalysis and SynthesisSurface Chemistry and CatalysisMesoporous Materials and Catalysis