Publication date: 15th December 2014
Molybdenum sulfide materials have emerged recently as low cost alternatives for the photo- and electrocatalytic reduction of water. Herein we present the generation of electrocatalytic species by reduction of Mo3S7Br4(diimino) complexes adsorbed on TiO2 surfaces. The reduced cluster has been characterized as a molybdenum (IV) sulfide. The activity of the as-generated molydenum-sulfide based cocatalystwill be discussed. Finally we will show how this Mo-sulfide co-catalyst enhances the activity of TiO2 for hydrogen photogeneration, in the presence of Na2S + Na2SO3 as sacrificial agent. This is a simple, scalable procedure that allows modifying a large variety of substrates in a controlled way with a molybdenum-sulfur based electrocatalyst.
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