Cover Feature: Photocatalytic Seawater Splitting by Earth‐Abundant Catalysts: Metal‐Semiconductor Metamaterials Made of Plasmonic Magnesium Diboride and Transitional Metal Dichalcogenides (Chem. Eur. J. 71/2024)

Photocatalytic water splitting based on plasmonic metal-semiconductor composites is demonstrated. In their Research Article (DOI: 10.1002/chem.202403050), A. N. Grigorenko and co-workers describe an exceptional reversed case of metal-semiconductor photocatalysts in which metals are used to initiate the water splitting reaction while semiconductors are employed to improve light harvesting through the blackbody effect. The suggested photo-anodic metamaterials are made of layered MgB2 and transition-metal dichalcogenides. Importantly, these photo-anodes split seawater with a high conversion ratio by utilizing most of the solar spectrum.