Ultrafine Mo2C Nanoparticles Decorated N-doped Carbon Nanofibers for Efficient Hydrogen Production

Molybdenum (Mo) carbides-based materials are considered promising electrocatalysts for hydrogen evolution reaction (HER). One dimensional nanostructured Mo carbides are of advantageous in providing abundant accessible catalytic active sites and facilitating electron and mass transfer. In this work, N-doped carbon nanofibers decorated with numerous ultrafine Mo2C nanoparticles with a size less than 5 nm have been fabricated by an electrospinning−assisted synthetic strategy. The optimized sample Mo2C@CNFs−3 exhibits excellent catalytic performance for HER in both acidic and alkaline media, making it among the best of the recently reported Mo carbides-based electrocatalysts. Additionally, other mono− or even bi− transition metal carbides with nanofibers structure have been prepared by the same strategy; thereby, extending opportunities in various catalysis applications.