Pt-free solar driven photoelectrochemical hydrogen fuel generation using 1T MoS2 co-catalyst assembled CdS QDs/TiO2 photoelectrode

Abstract

The solar-to-hydrogen generation from the TiO₂–CdS–ZnS–MoS₂ (TCZM) heterointerface was demonstrated. We found that a Pt-free CdS quantum dot-sensitized TiO₂ mesoporous electrode with a metallic-type 1T MoS₂ co-catalyst resulted in 0.11 ml cm⁻² h⁻¹ H₂ fuel generation in unassisted potential mode, which was strikingly improved to 1.47 ml cm⁻² h⁻¹ under 1 V applied potential.