Hydrogen evolution reaction at extreme pH conditions of copper sulfide micro-hexagons

Electrochemical hydrogen evolution reaction (HER) using non- precious comp ounds has gained substantia l interest in the development of water electrolyzers. Herein, we report the synthesis of Copper sulfide (Cu2S) micro-hexagons via a hydrothermal method, followed by some of the important physiochemical characterizations and electrochemical measurements towards the HER.