Textured and Hierarchically Porous Hematite Photoanode for Efficient Hydrogen Production via Photoelectrochemical Hydrazine Oxidation.

ABSTRACT: The performance of hematite (α-Fe₂O₃) photoanodes for photoelectrochemical (PEC) water splitting has been limited to around 2-5 mA cm^-2 under standard conditions due to their short hole diffusion length and sluggish oxygen evolution reaction kinetics. This work overcomes those challenges through a synergistic strategy that co-designs the hematite architecture and the surface reaction pathway. We introduce a textured and hierarchically porous Ti-doped Fe₂O₃ (tp-Fe₂O₃) photoanode, synthesized via multi-cycle growth and flame annealing method. This unique architecture features a high texture (110), enlarged surface area, and hierarchically porous structure, which enable significantly enhanced bulk charge transport an

SUBMITTER: Tan R 

PROVIDER: S-EPMC12783413 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature