Stable Solar Water Splitting Enabled in Anodic W/WO₃ Nanorod Based Electrodes by Hydrothermal Engineering.

ABSTRACT: The stability of WO₃ photoelectrodes in neutral media remains a significant challenge, particularly for those fabricated by anodic W oxidation. We report a simple, one-step hydrothermal treatment that transforms porous anodic WO₃ into nanorods with a dispersed FeWO₄ phase. This morphological evolution combines the advantages of high-aspect-ratio structures for improved light absorption with reduced charge recombination losses. The treatment also promotes preferential WO₃ growth along the monoclinic (002) planeknown to favor water splitting. The modified electrodes exhibited considerable photoluminescence quenching, significantly enhanced charge separation efficiency, and higher photon-to-current conversion, resulting in a photocurrent density th

SUBMITTER: Chatterjee P 

PROVIDER: S-EPMC12501940 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature