Hierarchical molybdenum carbide/N-doped carbon as efficient electrocatalyst for hydrogen evolution reaction in alkaline solution

A facile in-situ high temperature solid-phase reaction is used to fabricate hierarchical molybdenum carbide/N-doped carbon electrocatalyst for HER. The as-obtained catalyst shows and a lower overpotential of 142 mV at 10 mA cm−2 and a small Tafel slope of 61 mV decade −1 for HER in alkaline condition.223