Ultra-small hollow alloy nanoparticles for synergistic hydrogen evolution catalysis

Because hydrogen fuel has high energy density and does not pollute the environment, it has now shown the potential to replace fossil energy. The hydrogen evolution reaction (HER) is one of the most promising hydrogen production methods as a half-reaction of the electrolysis of water. Currently, traditional Pt-based compounds are used as the most active electrocatalysts for hydrogen evolution reactions. However, Pt is relatively scarce and expensive. Therefore, designing and synthesizing highly efficient, stable, and inexpensive catalysts is a frontier topic in the field of water electrolysis.