One-pot synthesis of copper–nickel sulfide nanowires for overall water splitting in alkaline media

Abstract

Herein, one dimensional copper–nickel sulfide nanowires (NWs) were, for the first time, synthesized by using an accurate one-pot multi-step wet chemistry strategy. The obtained copper–nickel sulfide NW electrocatalysts exhibit superb performance for both the hydrogen evolution reaction and oxygen evolution reaction, which is mainly due to the active centers Cu₂S, NiS and Ni₃S₂.