2D Bismuthene as a Functional Interlayer between BiVO ₄ and NiFeOOH for Enhanced Oxygen‐Evolution Photoanodes (Adv. Funct. Mater. 44/2022)

Enhanced Oxygen-Evolution Photoanodes In article number 2207136, Salvador Eslava and co-workers demonstrate a successful design of BiVO4/bismuthene/NiFeOOH composite photoanodes for enhanced solar water oxidation. They found that bismuthene increases the density of oxygen vacancies on BiVO4, increases interfacial band bending, and fills vacancy-related electron traps with charges, whereas NiFeOOH significantly increases surface hole concentration by passivating recombination surface states.