A bifunctional lead-iron oxyfluoride, PbFeOF, that functions as a visible-light-responsive photoanode and an electrocatalyst for water oxidation.

The oxyfluoride PbFeOF was investigated as a photoanode material and as an electrocatalyst for water oxidation. PbFeOF powder, which was synthesized by a high-pressure method and had an estimated bandgap of 2.1 eV, was deposited onto a fluorine-doped tin oxide (FTO) substrate.

Photocatalytic overall water splitting on Pt nanocluster-intercalated, restacked KCaNbO nanosheets: the promotional effect of co-existing ions.

Promotional effects of co-existing ions on overall water splitting into H and O have been studied in bulk-type semiconductor photocatalysts (, TiO), but such an effect remains unexplored in two-dimensional nanosheet photocatalysts. Here we examined the effect of co-existing ions on the photocatalytic water splitting activity of Pt nanocluster-intercalated KCaNbO nanosheets. Interestingly, not only anions, as usually observed in bulk-type photocatalysts, but also cations had a significant influence on the photocatalytic performance.

Perovskite oxide nanosheets with tunable band-edge potentials and high photocatalytic hydrogen-evolution activity.

Perovskite nanosheets of HCa(2-x)Sr(x)Nb3O10 and HCa2Nb(3-y)Ta(y)O10 with controlled band-edge potentials were prepared. They worked as highly efficient heterogeneous photocatalysts for H2 evolution from a water/methanol mixture under band-gap irradiation. The activity was found to depend on the composition.