Fluorescence microscopy provides the possibility to study solid catalytsts under in situ conditions with high sensitivity, down to single catalytic turnovers, and high spatial resolution down to the nanoscale.<sup>[1,2]</sup> This presentation will showcase how fluorescence-based assays can be used to create nanoscale activity maps of individual zeolites.<sup>[3,4]</sup> In contrast to large preformed polycyclic aromates used in biomedical fluorescence microscopy, application to catalysis research critically depends on developing relevant molecules that upon catalytic conversion generate a strongly fluorescent reaction product. By recording the fluorescence signal generated by every single catalytic conversions allows to accurately reconstruct a nanoscale activity map. Next to significant intraparticle heterogeneities, the data also reveal important interparticle heterogeneities which have often been overlooked so far. Electron microscopy and advanced Raman microscopy create the relevant structural and functional information to rationalize the observed nanoscale catalytic activity maps.[5,6,7]

High spatial resolution analysis of catalytic systems

ACS Spring 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.