Inside Back Cover: Light‐Induced Chemiluminescence Microscopy for Imaging Heterogeneous Photo‐Fenton‐Type Activity on Individual Hematite Photocatalysts (Angew. Chem. Int. Ed. 49/2025)

The cover illustrates light-induced chemiluminescence (CL) microscopy, proposed to visualize heterogeneous photocatalytic activity on individual photocatalysts in a controlled spatiotemporal way. In their Research Article (e202509277), Taeyoon Kim and Joohoon Kim demonstrate the potential of CL microscopy by revealing the spatial heterogeneity in photo-Fenton-type activity of dendritic hematite within a single hematite photocatalyst, as well as the unique activity distribution among individual photocatalysts in a population of hematite structures of different shapes and sizes.