Synthesis of nitrogen-doped MoSe 2 nanosheets with enhanced electrocatalytic activity for hydrogen evolution reaction

Abstract Benefiting from improved electrical conductivity, the N-doped MoSe 2 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 MoSe 2 . The success of improving the HER performance via the introduction of N dopant offers a new opportunity in the development of high performance MoSe 2 -based electrocatalyst.