Fig. 6: Surface catalytic reactions and light absorption of NiPS3/CdS system. | Nature Communications

Fig. 6: Surface catalytic reactions and light absorption of NiPS3/CdS system.

From: NiPS3 ultrathin nanosheets as versatile platform advancing highly active photocatalytic H2 production

Fig. 6

a Electrochemical HER activities in 0.1 M KOH aqueous solution for 0.0N, 20.0N, NiPS3 UNSs and 20 wt% Pt/C. b top-view atomic structure of NiPS3/CdS showing the Ni, P and S basal sites. c The calculated free energy diagrams of HER following the Volmer-Heyrovsky pathway on the Ni, P and S sites of NiPS3 basal plane in NiPS3/CdS system. d The calculated free energy diagrams of HER following the Volmer-Tafel pathway on the Ni, P and S sites of NiPS3 basal plane in NiPS3/CdS system. e UV-Vis diffuse reflectance spectra of 0.0N, 5.0N, 10.0N, 20.0N and 30.0N. f Photocatalytic H2-production rates measured for 20.0N in ~17.0 vol% triethanolamine aqueous solution with xenon light irradiation (λ > 400 nm) and 630-nm LED, respectively. All the Gibbs free energy calculations were conducted considering the solvation effect in 17 vol% triethanolamine aqueous solution.

Back to article page