Development of CuN electrocatalyst for hydrogen evolution reaction in alkaline medium.

A wide variety of electrocatalysts has been evolved for hydrogen evolution reaction (HER) and it is reasonable to carry out HER with low cost electrocatalyst and a good efficiency. In this study, CuN was synthesized by nitridation of CuO and further utilized as an electrocatalyst towards HER. The developed CuN electrocatalyst was tested and results showed a low overpotential and moderate Tafel slope value (overpotential: 149.