A highly efficient hematite photoelectrochemical fuel cell for solar-driven hydrogen production

Enhancing photocatalytic efficiency with hematite photoanodes: principles, properties, and strategies for surface, bulk, and interface charge transfer improvement

“…Their research found that Al 2 O 3 deposition reduces the charge transfer resistance, thereby increasing the performance of hematite photoanode. Another strategy involves coating photoactive compounds; for example, Zhu et al 147 coated l -cysteine (L-(C)ys) on porous hematite to passivate the surface state, providing an alternative route for water oxidation and lowering the charge transfer. The strong complexation interaction between hematite and (L)-Cys enables direct photooxidation, generating additional electrons for efficient H 2 production (Fig.…”