Pulsed Laser Deposition of Nanostructured MoS/np-Mo//WO Hybrid Catalyst for Enhanced (Photo) Electrochemical Hydrogen Evolution.

Pulsed laser ablation of MoS and WO targets at appropriate pressures of background gas (Ar, air) were used for the preparation of new hybrid nanostructured catalytic films for hydrogen production in an acid solution. The films consisted of a nanostructured WO underlayer that was covered with composite MoS/np-Mo nanocatalyst. The use of dry air with pressures of 40 and 80 Pa allowed the formation of porous WO films with cauliflower- and web-like morphology, respectively.