Catalyst research for solar fuels: Amorphous molybdenum sulfide works best
(PHYSorg.com Chemistry)

Efficient and inexpensive catalysts will be required for production of hydrogen from sunlight. Molybdenum sulfides are considered good candidates. A team at HZB has now explained what processes take place in molybdenum sulfides during catalysis and why amorphous molybdenum sulfide works best. The results have been published in the journal ACS Catalysis.