Coupling molybdenum carbide nanoparticles with N-doped carbon nanosheets as a high-efficiency electrocatalyst for hydrogen evolution reaction

We report a facile pyrolysis approach to fabricate 2D ultrathin N-doped carbon nanosheets decorated with well-dispersed Mo2C particles (denoted as Mo2C@NC nanosheets) by using NaCl crystallites as templates. Benefiting from the unique structural and compositional advantages, the as-synthesized Mo2C@NC nanosheets exhibit a low HER overpotential, a small Tafel slope and excellent stability under acidic condition.351