Fig. 1: High-performance CdS photocatalyst for HER.
From: Efficient and stable n-type sulfide overall water splitting with separated hydrogen production
a Hydrogen evolution rates of CdS with different cocatalysts. The inset shows the spatial distribution of cocatalysts. Error bars indicate the standard deviations. The optimal loadings of Pt, Cr, and Co3O4 were 0.4 wt.%, 0.4 wt.%, and 0.2 wt.%, respectively (Supplementary Figs. 12–14). b Bright-field, dark-field, and HAADF-STEM images of Pt@CrOx/Co3O4 cocatalysts on the CdS surface. DF4 shows weaker Cr signals than DF2 as it collects electrons scattered at higher angles, making it more sensitive to heavier elements. c Photocurrent curves of CdS photoelectrodes with different cocatalysts under intermittent visible-light irradiation (λ ≥ 420 nm). Cathodic currents for d H+ and e [Fe(CN)6]3− reduction on CdS photoelectrodes with different cocatalysts. f Open-circuit potentials (OCPs) of Pt@CrOx/CdS photoelectrodes with and without Co3O4. Source data are provided as a Source data file.
