Electrodeposition of amorphous molybdenum sulfide thin film for electrochemical hydrogen evolution reaction.

Amorphous molybdenum sulfide (MoS) is a highly active noble-metal-free electrocatalysts for the hydrogen evolution reaction (HER). The MoS was prepared by electrochemical deposition at room temperature. Low-cost precursors of Mo and S were adopted to synthesize thiomolybdates solution as the electrolyte.