In heterogeneous photocatalysis, noble metals such as Au, Pt, or Pd are most commonly
used as co-catalysts to facilitate H2 evolution, yet their costs are problematic for applications
on a large scale. In this work, we show that the cheaper, more abundant transition metal
nickel as co-catalyst material reacts accordingly, when being deposited as small clusters
onto rutile TiO2. Different to noble metal systems the photocatalysts undergo photocorrosion,
depicted in a declining activity during the photoreforming of methanol. The reaction being …

… Correction: Nickel clusters on TiO2(110): thermal chemistry and photocatalytic hydrogen
evolution of methanol … 72 is incorrectly described as “a recent operando XPS study on a
bimetallic NiCu–TiO2 photocatalyst for H2 evolution unequivocally shows the metallic state of
both co-catalyst metals”.This should instead read “a recent operando XAS (X-ray absorption
spectroscopy) study on a bimetallic NiCu–TiO2 photocatalyst for H2 evolution unequivocally
shows the metallic state of both co-catalyst metals”.The details of ref. 72 are shown below as ref. …