Recovered spinel MnCo2O4from spent lithium-ion batteries for enhanced electrocatalytic oxygen evolution in alkaline medium

The recovery of spinel MnCo₂O₄from spent LIBs was achieved by a set of physical and chemical treatments, their employment for water oxidation in alkaline conditions was studied, and it was found that the recovered spinel MnCo₂O₄were more effective than recovered monometallic oxides.