Active guests in the MoS 2 /MoSe 2 host lattice: efficient hydrogen evolution using few-layer alloys of MoS 2(1−x) Se 2x

Few-layer transition metal dichalcogenide alloys based on molybdenum sulphoselenides [MoS2(1-x)Se2x] possess higher hydrogen evolution (HER) activity compared to pristine few-layer MoS2 and MoSe2. Variation of the sulphur or selenium content in the parent dichalcogenides reveals a systematic stru…