Which Materials are Commonly Used as Catalysts for HER?
Catalysts for HER can be broadly categorized into three groups:
Noble Metals: Platinum (Pt) is the most effective catalyst for HER but is expensive and scarce. Transition Metal Sulfides: Materials like molybdenum disulfide (MoS2) have shown promising catalytic activity at a lower cost. Non-Metal Catalysts: Carbon-based materials doped with nitrogen or other heteroatoms are being explored for their catalytic properties.