Molybdenum sulphides on carbon supports as electrocatalysts for hydrogen evolution in acidic industrial wastewater

Applied Energy                     online article

Microbial electrolysis cells (MECs) are an attractive future alternative technology to generate renewable hydrogen and simultaneously treat wastewaters. The thermodynamics of hydrogen evolution in MECs can be greatly improved by operating the cathode at acidic pH in combination with a neutral pH microbial anode. For the hydrogen evolution reaction (HER) in acidic wastewater, efficient and inexpensive catalysts are required. In this study, molybdenum sulphides (MoSx) on different carbon supports were successfully used for hydrogen evolution in different acidic media.