Hydrogen Production Using a Molybdenum Sulfide Catalyst on a Titanium‐Protected n⁺p‐Silicon Photocathode

A low-cost substitute: A titanium protection layer on silicon made it possible to use silicon under highly oxidizing conditions without oxidation of the silicon. Molybdenum sulfide was electrodeposited on the Ti-protected n(+)p-silicon electrode. This electrode was applied as a photocathode for water splitting and showed a greatly enhanced efficiency.