Front Cover: Bi site doped Ferroelectric BiFe0.95Mn0.05O3 Nanoparticles for Hydrogen Evolution Reaction (ChemCatChem 12/2024)

The Front Cover graphic illustrates the process of hydrogen evolution during water splitting through electrocatalysis, highlighting the functionality of cationically engineered bismuth ferrite (BFO) nanoparticles (NPs). In their Research Article, Astita Dubey, Ignacio Sanjuán, and co-workers explain that the electrocatalytic activity of Mn-doped BFO NPs undergoes a transformative shift as a consequence of mono-, di-, and tri-valent cation substitution for hydrogen evolution. Unlocking the potential of Mn-doped BFO NPs: enhancing hydrogen evolution activity through cationic substitutions at the Bi site. A lower kinetic overpotential for codoped BFO NPs was found. Why? It′s all about reducing charge transfer resistance, boosting surface area, and introducing novel active sites through various valent dopants. With a unique morphology, varied pore sizes, and bonus features like optimum surface defects and oxygen vacancies, contribute to reducing kinetic overpotential. More information can be found in the Research Article by A. Dubey et al. (DOI: 10.1002/cctc.202400130).