Synthesis of nitrogen-doped MoSe2 nanosheets with enhanced electrocatalytic activity for hydrogen evolution reaction

Benefiting from improved electrical conductivity, the N-doped MoSe2 nanosheets show substantially enhanced HER activity with a lower onset overpotential of approximately −135 mV and a smaller Tafel slope of 62 mV dec−1, which exhibiting enhanced catalytic performance compared with that of pure MoSe2. The success of improving the HER performance via the introduction of N dopant offers a new opportunity in the development of high performance MoSe2-based electrocatalyst.