Ni Nanoparticles on Ultrathin Mo2C Interconnected Nanonet: An Efficient 3D Hydrogen-Evolving Electrocatalyst with Superior Durability.

Exploring efficient non-noble-metal electrocatalysts for hydrogen evolution reaction (HER) is becoming an urgent task owning to the persistently aggravating energy crisis. Herein, small Ni nanoparticles embedded in ultrathin Mo₂C interconnected nanonet on carbon nanofibers (CF) were prepared for the first time. The Ni/Mo₂C nanonet on CF (Ni/Mo₂C/CF) carbonized under 650°C exhibits ultra-high catalytic activity which only needs 92 mV to afford 10 A/g with remarkable durability for HER in alkaline electrolyte. [ABSTRACT FROM AUTHOR]