A hollow CuS–CuO nanocube core and NiFe-LDH nanosheet shell electrocatalyst for enhanced oxygen evolution reaction

CuS–CuO@NiFe-LDH, which is a CuS–CuO hollow nanocube covered with a NiFe-LDH nanosheet, was synthesized. The CuS–CuO nanocube as the core substrate can modify the electronic structure of NiFe-LDH, exhibiting improved OER activity in alkaline media.